20682732 has 24 divisors (see below), whose sum is σ = 55154176. Its totient is φ = 5909328.

The previous prime is 20682719. The next prime is 20682743. The reversal of 20682732 is 23728602.

It is a self number, because there is not a number n which added to its sum of digits gives 20682732.

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, 123028 + ... + 123195.

Almost surely, 2^20682732 is an apocalyptic number.

It is an amenable number.

20682732 is an abundant number, since it is smaller than the sum of its proper divisors (34471444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20682732 is a wasteful number, since it uses less digits than its factorization.

20682732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246237 (or 246235 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 20682732 is about 4547.8271734973. The cubic root of 20682732 is about 274.4959671074.

The spelling of 20682732 in words is "twenty million, six hundred eighty-two thousand, seven hundred thirty-two".