204664426 has 16 divisors (see below), whose sum is σ = 318212640. Its totient is φ = 98607600.

The previous prime is 204664379. The next prime is 204664433. The reversal of 204664426 is 624466402.

It is a junction number, because it is equal to n+sod(n) for n = 204664391 and 204664400.

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, 28501 + ... + 34951.

It is an arithmetic number, because the mean of its divisors is an integer number (19888290).

Almost surely, 2^204664426 is an apocalyptic number.

204664426 is a deficient number, since it is larger than the sum of its proper divisors (113548214).

204664426 is a wasteful number, since it uses less digits than its factorization.

204664426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7029.

The product of its (nonzero) digits is 55296, while the sum is 34.

The square root of 204664426 is about 14306.0975112013. The cubic root of 204664426 is about 589.3149436528.

The spelling of 204664426 in words is "two hundred four million, six hundred sixty-four thousand, four hundred twenty-six".