204918396 has 12 divisors (see below), whose sum is σ = 478142952. Its totient is φ = 68306128.

The previous prime is 204918383. The next prime is 204918419. The reversal of 204918396 is 693819402.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8538255 + ... + 8538278.

It is an arithmetic number, because the mean of its divisors is an integer number (39845246).

Almost surely, 2^204918396 is an apocalyptic number.

It is an amenable number.

204918396 is an abundant number, since it is smaller than the sum of its proper divisors (273224556).

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

204918396 is a wasteful number, since it uses less digits than its factorization.

204918396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17076540 (or 17076538 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 204918396 is about 14314.9710443298. The cubic root of 204918396 is about 589.5586050347.

The spelling of 204918396 in words is "two hundred four million, nine hundred eighteen thousand, three hundred ninety-six".