20932636 has 12 divisors (see below), whose sum is σ = 36717912. Its totient is φ = 10441808.

The previous prime is 20932633. The next prime is 20932651. The reversal of 20932636 is 63623902.

It is a junction number, because it is equal to n+sod(n) for n = 20932598 and 20932607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20932631) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4135 + ... + 7678.

It is an arithmetic number, because the mean of its divisors is an integer number (3059826).

Almost surely, 2^20932636 is an apocalyptic number.

It is an amenable number.

20932636 is a deficient number, since it is larger than the sum of its proper divisors (15785276).

20932636 is a wasteful number, since it uses less digits than its factorization.

20932636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12260 (or 12258 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 20932636 is about 4575.2197761419. The cubic root of 20932636 is about 275.5970981949.

The spelling of 20932636 in words is "twenty million, nine hundred thirty-two thousand, six hundred thirty-six".