13481968 has 10 divisors (see below), whose sum is σ = 26121344. Its totient is φ = 6740976.

The previous prime is 13481947. The next prime is 13481971. The reversal of 13481968 is 86918431.

It is a super-2 number, since 2×13481968² = 363526922306048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13481968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421296 + ... + 421327.

Almost surely, 2^13481968 is an apocalyptic number.

It is an amenable number.

13481968 is a deficient number, since it is larger than the sum of its proper divisors (12639376).

13481968 is an equidigital number, since it uses as much as digits as its factorization.

13481968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842631 (or 842625 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 13481968 is about 3671.7799498336. The cubic root of 13481968 is about 238.0040956855.

The spelling of 13481968 in words is "thirteen million, four hundred eighty-one thousand, nine hundred sixty-eight".