204090936 has 32 divisors (see below), whose sum is σ = 583117440. Its totient is φ = 58311648.

The previous prime is 204090923. The next prime is 204090961. The reversal of 204090936 is 639090402.

It is a super-2 number, since 2×204090936² = 83306220314712192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204090897 and 204090906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607246 + ... + 607581.

It is an arithmetic number, because the mean of its divisors is an integer number (18222420).

Almost surely, 2^204090936 is an apocalyptic number.

It is an amenable number.

204090936 is an abundant number, since it is smaller than the sum of its proper divisors (379026504).

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

204090936 is a wasteful number, since it uses less digits than its factorization.

204090936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214843 (or 1214839 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 204090936 is about 14286.0398991463. The cubic root of 204090936 is about 588.7639891015.

The spelling of 204090936 in words is "two hundred four million, ninety thousand, nine hundred thirty-six".