204908290 has 16 divisors (see below), whose sum is σ = 370875960. Its totient is φ = 81509760.

The previous prime is 204908261. The next prime is 204908351. The reversal of 204908290 is 92809402.

It can be written as a sum of positive squares in 4 ways, for example, as 132641289 + 72267001 = 11517^2 + 8501^2 .

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, 54795 + ... + 58414.

Almost surely, 2^204908290 is an apocalyptic number.

204908290 is a deficient number, since it is larger than the sum of its proper divisors (165967670).

204908290 is a wasteful number, since it uses less digits than its factorization.

204908290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113397.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 204908290 is about 14314.6180528857. The cubic root of 204908290 is about 589.5489130836.

The spelling of 204908290 in words is "two hundred four million, nine hundred eight thousand, two hundred ninety".