20682472 has 16 divisors (see below), whose sum is σ = 41061060. Its totient is φ = 9732864.

The previous prime is 20682463. The next prime is 20682499. The reversal of 20682472 is 27428602.

It can be written as a sum of positive squares in 2 ways, for example, as 20557156 + 125316 = 4534^2 + 354^2 .

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, 75903 + ... + 76174.

Almost surely, 2^20682472 is an apocalyptic number.

It is an amenable number.

20682472 is a deficient number, since it is larger than the sum of its proper divisors (20378588).

20682472 is a wasteful number, since it uses less digits than its factorization.

20682472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152100 (or 152096 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 20682472 is about 4547.7985883282. The cubic root of 20682472 is about 274.4948168846.

The spelling of 20682472 in words is "twenty million, six hundred eighty-two thousand, four hundred seventy-two".