1204104240 has 120 divisors (see below), whose sum is σ = 4092706800. Its totient is φ = 317210112.

The previous prime is 1204104221. The next prime is 1204104287. The reversal of 1204104240 is 424014021.

1204104240 is a `hidden beast` number, since 12 + 0 + 410 + 4 + 240 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49686 + ... + 69834.

It is an arithmetic number, because the mean of its divisors is an integer number (34105890).

Almost surely, 2^1204104240 is an apocalyptic number.

1204104240 is a gapful number since it is divisible by the number (10) 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 1204104240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2046353400).

1204104240 is an abundant number, since it is smaller than the sum of its proper divisors (2888602560).

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

1204104240 is a wasteful number, since it uses less digits than its factorization.

1204104240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20251 (or 20242 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1204104240 is about 34700.2051867132. The cubic root of 1204104240 is about 1063.8686922212.

Adding to 1204104240 its reverse (424014021), we get a palindrome (1628118261).

The spelling of 1204104240 in words is "one billion, two hundred four million, one hundred four thousand, two hundred forty".