20324986 has 16 divisors (see below), whose sum is σ = 33757920. Its totient is φ = 9100080.

The previous prime is 20324929. The next prime is 20324987. The reversal of 20324986 is 68942302.

It is not an unprimeable number, because it can be changed into a prime (20324987) 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, 5421 + ... + 8368.

It is an arithmetic number, because the mean of its divisors is an integer number (2109870).

Almost surely, 2^20324986 is an apocalyptic number.

20324986 is a deficient number, since it is larger than the sum of its proper divisors (13432934).

20324986 is a wasteful number, since it uses less digits than its factorization.

20324986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13869.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 20324986 is about 4508.3240788568. The cubic root of 20324986 is about 272.9041154948.

The spelling of 20324986 in words is "twenty million, three hundred twenty-four thousand, nine hundred eighty-six".