20312936 has 32 divisors (see below), whose sum is σ = 44935680. Its totient is φ = 8424000.

The previous prime is 20312923. The next prime is 20312951. The reversal of 20312936 is 63921302.

It is a congruent number.

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, 4115 + ... + 7586.

It is an arithmetic number, because the mean of its divisors is an integer number (1404240).

Almost surely, 2^20312936 is an apocalyptic number.

It is an amenable number.

20312936 is an abundant number, since it is smaller than the sum of its proper divisors (24622744).

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

20312936 is a wasteful number, since it uses less digits than its factorization.

20312936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11745 (or 11741 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 20312936 is about 4506.9874639275. The cubic root of 20312936 is about 272.8501729453.

The spelling of 20312936 in words is "twenty million, three hundred twelve thousand, nine hundred thirty-six".