1204604928 has 156 divisors (see below), whose sum is σ = 3568884228. Its totient is φ = 391249920.

The previous prime is 1204604927. The next prime is 1204604939. The reversal of 1204604928 is 8294064021.

1204604928 is a `hidden beast` number, since 1 + 20 + 4 + 604 + 9 + 28 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 272646144 + 931958784 = 16512^2 + 30528^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1204604892 and 1204604901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204604927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1511026 + ... + 1511822.

It is an arithmetic number, because the mean of its divisors is an integer number (22877463).

Almost surely, 2^1204604928 is an apocalyptic number.

1204604928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1204604928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1784442114).

1204604928 is an abundant number, since it is smaller than the sum of its proper divisors (2364279300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1204604928 is an equidigital number, since it uses as much as digits as its factorization.

1204604928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 843 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 1204604928 is about 34707.4189187269. The cubic root of 1204604928 is about 1064.0161303074.

Adding to 1204604928 its reverse (8294064021), we get a palindrome (9498668949).

The spelling of 1204604928 in words is "one billion, two hundred four million, six hundred four thousand, nine hundred twenty-eight".