13921952 has 24 divisors (see below), whose sum is σ = 29901312. Its totient is φ = 6328000.

The previous prime is 13921949. The next prime is 13921961. The reversal of 13921952 is 25912931.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19424 + ... + 20127.

It is an arithmetic number, because the mean of its divisors is an integer number (1245888).

Almost surely, 2^13921952 is an apocalyptic number.

It is an amenable number.

13921952 is an abundant number, since it is smaller than the sum of its proper divisors (15979360).

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

13921952 is a wasteful number, since it uses less digits than its factorization.

13921952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39572 (or 39564 counting only the distinct ones).

The product of its digits is 4860, while the sum is 32.

The square root of 13921952 is about 3731.2132075238. The cubic root of 13921952 is about 240.5655182598.

The spelling of 13921952 in words is "thirteen million, nine hundred twenty-one thousand, nine hundred fifty-two".