204157916 has 6 divisors (see below), whose sum is σ = 357276360. Its totient is φ = 102078956.

The previous prime is 204157871. The next prime is 204157931. The reversal of 204157916 is 619751402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25519736 + ... + 25519743.

It is an arithmetic number, because the mean of its divisors is an integer number (59546060).

Almost surely, 2^204157916 is an apocalyptic number.

It is an amenable number.

204157916 is a deficient number, since it is larger than the sum of its proper divisors (153118444).

204157916 is a wasteful number, since it uses less digits than its factorization.

204157916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51039483 (or 51039481 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 204157916 is about 14288.3839534077. The cubic root of 204157916 is about 588.8283902936.

The spelling of 204157916 in words is "two hundred four million, one hundred fifty-seven thousand, nine hundred sixteen".