1204104220 has 96 divisors (see below), whose sum is σ = 2939219136. Its totient is φ = 409497600.

The previous prime is 1204104199. The next prime is 1204104221. The reversal of 1204104220 is 224014021.

It is a junction number, because it is equal to n+sod(n) for n = 1204104194 and 1204104203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204104221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 646090 + ... + 647950.

It is an arithmetic number, because the mean of its divisors is an integer number (30616866).

Almost surely, 2^1204104220 is an apocalyptic number.

1204104220 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 1204104220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1469609568).

1204104220 is an abundant number, since it is smaller than the sum of its proper divisors (1735114916).

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

1204104220 is a wasteful number, since it uses less digits than its factorization.

1204104220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071 (or 2069 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1204104220 is about 34700.2048985305. The cubic root of 1204104220 is about 1063.8686863310.

Adding to 1204104220 its reverse (224014021), we get a palindrome (1428118241).

The spelling of 1204104220 in words is "one billion, two hundred four million, one hundred four thousand, two hundred twenty".