20902932 has 36 divisors (see below), whose sum is σ = 53036256. Its totient is φ = 6941520.

The previous prime is 20902901. The next prime is 20902943. The reversal of 20902932 is 23920902.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 20902896 and 20902905.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 10263 + ... + 12129.

Almost surely, 2^20902932 is an apocalyptic number.

It is an amenable number.

20902932 is an abundant number, since it is smaller than the sum of its proper divisors (32133324).

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

20902932 is a wasteful number, since it uses less digits than its factorization.

20902932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188 (or 2183 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 20902932 is about 4571.9724408618. The cubic root of 20902932 is about 275.4666764701.

The spelling of 20902932 in words is "twenty million, nine hundred two thousand, nine hundred thirty-two".