13990648 has 16 divisors (see below), whose sum is σ = 29980080. Its totient is φ = 5995968.

The previous prime is 13990637. The next prime is 13990657. The reversal of 13990648 is 84609931.

It is a super-3 number, since 3×13990648³ (a number of 22 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13990648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124861 + ... + 124972.

It is an arithmetic number, because the mean of its divisors is an integer number (1873755).

Almost surely, 2^13990648 is an apocalyptic number.

It is an amenable number.

13990648 is an abundant number, since it is smaller than the sum of its proper divisors (15989432).

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

13990648 is a wasteful number, since it uses less digits than its factorization.

13990648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249846 (or 249842 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 13990648 is about 3740.4074644349. The cubic root of 13990648 is about 240.9605486291.

The spelling of 13990648 in words is "thirteen million, nine hundred ninety thousand, six hundred forty-eight".