204894004 has 24 divisors (see below), whose sum is σ = 423008768. Its totient is φ = 84978720.

The previous prime is 204893999. The next prime is 204894007. The reversal of 204894004 is 400498402.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204894007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117159 + ... + 118894.

Almost surely, 2^204894004 is an apocalyptic number.

It is an amenable number.

204894004 is an abundant number, since it is smaller than the sum of its proper divisors (218114764).

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

204894004 is a wasteful number, since it uses less digits than its factorization.

204894004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236095 (or 236093 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 204894004 is about 14314.1190437973. The cubic root of 204894004 is about 589.5352118460.

The spelling of 204894004 in words is "two hundred four million, eight hundred ninety-four thousand, four".