204630634 has 8 divisors (see below), whose sum is σ = 330557220. Its totient is φ = 94444896.

The previous prime is 204630623. The next prime is 204630637. The reversal of 204630634 is 436036402.

It can be written as a sum of positive squares in 2 ways, for example, as 198894609 + 5736025 = 14103^2 + 2395^2 .

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

It is not an unprimeable number, because it can be changed into a prime (204630637) by changing a digit.

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, 3935179 + ... + 3935230.

Almost surely, 2^204630634 is an apocalyptic number.

204630634 is a deficient number, since it is larger than the sum of its proper divisors (125926586).

204630634 is a wasteful number, since it uses less digits than its factorization.

204630634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7870424.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 204630634 is about 14304.9164275783. The cubic root of 204630634 is about 589.2825080751.

The spelling of 204630634 in words is "two hundred four million, six hundred thirty thousand, six hundred thirty-four".