20582632 has 16 divisors (see below), whose sum is σ = 44105760. Its totient is φ = 8821104.

The previous prime is 20582623. The next prime is 20582633. The reversal of 20582632 is 23628502.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 20582632.

It is not an unprimeable number, because it can be changed into a prime (20582633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183718 + ... + 183829.

It is an arithmetic number, because the mean of its divisors is an integer number (2756610).

Almost surely, 2^20582632 is an apocalyptic number.

It is an amenable number.

20582632 is an abundant number, since it is smaller than the sum of its proper divisors (23523128).

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

20582632 is a wasteful number, since it uses less digits than its factorization.

20582632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367560 (or 367556 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 20582632 is about 4536.8085699090. The cubic root of 20582632 is about 274.0524168460.

The spelling of 20582632 in words is "twenty million, five hundred eighty-two thousand, six hundred thirty-two".