20577032 has 32 divisors (see below), whose sum is σ = 45289920. Its totient is φ = 8579520.

The previous prime is 20577013. The next prime is 20577059. The reversal of 20577032 is 23077502.

It is a junction number, because it is equal to n+sod(n) for n = 20576992 and 20577010.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2894 + ... + 7037.

It is an arithmetic number, because the mean of its divisors is an integer number (1415310).

Almost surely, 2^20577032 is an apocalyptic number.

It is an amenable number.

20577032 is an abundant number, since it is smaller than the sum of its proper divisors (24712888).

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

20577032 is a wasteful number, since it uses less digits than its factorization.

20577032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9981 (or 9977 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 20577032 is about 4536.1913539885. The cubic root of 20577032 is about 274.0275604082.

The spelling of 20577032 in words is "twenty million, five hundred seventy-seven thousand, thirty-two".