20632474 has 16 divisors (see below), whose sum is σ = 31402728. Its totient is φ = 10166272.

The previous prime is 20632439. The next prime is 20632481. The reversal of 20632474 is 47423602.

It can be written as a sum of positive squares in 4 ways, for example, as 19298449 + 1334025 = 4393^2 + 1155^2 .

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, 70272 + ... + 70564.

Almost surely, 2^20632474 is an apocalyptic number.

20632474 is a deficient number, since it is larger than the sum of its proper divisors (10770254).

20632474 is a wasteful number, since it uses less digits than its factorization.

20632474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 20632474 is about 4542.2983169316. The cubic root of 20632474 is about 274.2734496366.

The spelling of 20632474 in words is "twenty million, six hundred thirty-two thousand, four hundred seventy-four".