20302936 has 32 divisors (see below), whose sum is σ = 39507840. Its totient is φ = 9773568.

The previous prime is 20302927. The next prime is 20302939. The reversal of 20302936 is 63920302.

It is a self number, because there is not a number n which added to its sum of digits gives 20302936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33145 + ... + 33751.

It is an arithmetic number, because the mean of its divisors is an integer number (1234620).

Almost surely, 2^20302936 is an apocalyptic number.

It is an amenable number.

20302936 is a deficient number, since it is larger than the sum of its proper divisors (19204904).

20302936 is a wasteful number, since it uses less digits than its factorization.

20302936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763 (or 759 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 20302936 is about 4505.8779388705. The cubic root of 20302936 is about 272.8053911440.

The spelling of 20302936 in words is "twenty million, three hundred two thousand, nine hundred thirty-six".