204919320 has 64 divisors (see below), whose sum is σ = 631386720. Its totient is φ = 53167104.

The previous prime is 204919303. The next prime is 204919327. The reversal of 204919320 is 23919402.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204919327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18637 + ... + 27516.

Almost surely, 2^204919320 is an apocalyptic number.

204919320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204919320 is an abundant number, since it is smaller than the sum of its proper divisors (426467400).

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

204919320 is a wasteful number, since it uses less digits than its factorization.

204919320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46204 (or 46200 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 204919320 is about 14315.0033181973. The cubic root of 204919320 is about 589.5594911620.

The spelling of 204919320 in words is "two hundred four million, nine hundred nineteen thousand, three hundred twenty".