20316924 has 18 divisors (see below), whose sum is σ = 51356760. Its totient is φ = 6772296.

The previous prime is 20316911. The next prime is 20316929. The reversal of 20316924 is 42961302.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20316929) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282144 + ... + 282215.

Almost surely, 2^20316924 is an apocalyptic number.

It is an amenable number.

20316924 is an abundant number, since it is smaller than the sum of its proper divisors (31039836).

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

20316924 is a wasteful number, since it uses less digits than its factorization.

20316924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564369 (or 564364 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 20316924 is about 4507.4298663429. The cubic root of 20316924 is about 272.8680278284.

The spelling of 20316924 in words is "twenty million, three hundred sixteen thousand, nine hundred twenty-four".