204000408 has 48 divisors (see below), whose sum is σ = 585004680. Its totient is φ = 63999744.

The previous prime is 204000383. The next prime is 204000427. The reversal of 204000408 is 804000402.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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, 82110 + ... + 84557.

Almost surely, 2^204000408 is an apocalyptic number.

It is an amenable number.

204000408 is an abundant number, since it is smaller than the sum of its proper divisors (381004272).

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

204000408 is a wasteful number, since it uses less digits than its factorization.

204000408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166696 (or 166689 counting only the distinct ones).

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

The square root of 204000408 is about 14282.8711399354. The cubic root of 204000408 is about 588.6769241391.

The spelling of 204000408 in words is "two hundred four million, four hundred eight", and thus it is an aban number.