204465490 has 8 divisors (see below), whose sum is σ = 368037900. Its totient is φ = 81786192.

The previous prime is 204465451. The next prime is 204465523. The reversal of 204465490 is 94564402.

It can be written as a sum of positive squares in 2 ways, for example, as 188760121 + 15705369 = 13739^2 + 3963^2 .

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

It is a super-2 number, since 2×204465490² = 83612273201880200, which contains 22 as substring.

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, 10223265 + ... + 10223284.

Almost surely, 2^204465490 is an apocalyptic number.

204465490 is a deficient number, since it is larger than the sum of its proper divisors (163572410).

204465490 is a wasteful number, since it uses less digits than its factorization.

204465490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20446556.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 204465490 is about 14299.1429813119. The cubic root of 204465490 is about 589.1239416219.

The spelling of 204465490 in words is "two hundred four million, four hundred sixty-five thousand, four hundred ninety".