19956924 has 36 divisors (see below), whose sum is σ = 54328456. Its totient is φ = 6140448.

The previous prime is 19956917. The next prime is 19956941. The reversal of 19956924 is 42965991.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 19956924.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20854 + ... + 21789.

Almost surely, 2^19956924 is an apocalyptic number.

It is an amenable number.

19956924 is an abundant number, since it is smaller than the sum of its proper divisors (34371532).

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

19956924 is a wasteful number, since it uses less digits than its factorization.

19956924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42666 (or 42661 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 19956924 is about 4467.3173157948. The cubic root of 19956924 is about 271.2467444943.

The spelling of 19956924 in words is "nineteen million, nine hundred fifty-six thousand, nine hundred twenty-four".