204157238 has 8 divisors (see below), whose sum is σ = 306368832. Its totient is φ = 102034296.

The previous prime is 204157229. The next prime is 204157243. The reversal of 204157238 is 832751402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16070 + ... + 25817.

It is an arithmetic number, because the mean of its divisors is an integer number (38296104).

Almost surely, 2^204157238 is an apocalyptic number.

204157238 is a deficient number, since it is larger than the sum of its proper divisors (102211594).

204157238 is a wasteful number, since it uses less digits than its factorization.

204157238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44326.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 204157238 is about 14288.3602278218. The cubic root of 204157238 is about 588.8277384679.

The spelling of 204157238 in words is "two hundred four million, one hundred fifty-seven thousand, two hundred thirty-eight".