204038691 has 8 divisors (see below), whose sum is σ = 272556624. Its totient is φ = 135773280.

The previous prime is 204038687. The next prime is 204038707. The reversal of 204038691 is 196830402.

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

It is not a de Polignac number, because 204038691 - 2² = 204038687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204038671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61236 + ... + 64481.

It is an arithmetic number, because the mean of its divisors is an integer number (34069578).

Almost surely, 2^204038691 is an apocalyptic number.

204038691 is a deficient number, since it is larger than the sum of its proper divisors (68517933).

204038691 is a wasteful number, since it uses less digits than its factorization.

204038691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126261.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 204038691 is about 14284.2112487879. The cubic root of 204038691 is about 588.7137458123.

The spelling of 204038691 in words is "two hundred four million, thirty-eight thousand, six hundred ninety-one".