20995324 has 18 divisors (see below), whose sum is σ = 42740880. Its totient is φ = 8997912.

The previous prime is 20995307. The next prime is 20995349. The reversal of 20995324 is 42359902.

It is a self number, because there is not a number n which added to its sum of digits gives 20995324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53364 + ... + 53755.

Almost surely, 2^20995324 is an apocalyptic number.

It is an amenable number.

20995324 is an abundant number, since it is smaller than the sum of its proper divisors (21745556).

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

20995324 is a wasteful number, since it uses less digits than its factorization.

20995324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107137 (or 107128 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 20995324 is about 4582.0654731245. The cubic root of 20995324 is about 275.8719387697.

The spelling of 20995324 in words is "twenty million, nine hundred ninety-five thousand, three hundred twenty-four".