13649976 has 24 divisors (see below), whose sum is σ = 36968880. Its totient is φ = 4549968.

The previous prime is 13649969. The next prime is 13649989. The reversal of 13649976 is 67994631.

It is a tau number, because it is divible by the number of its divisors (24).

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, 94720 + ... + 94863.

It is an arithmetic number, because the mean of its divisors is an integer number (1540370).

Almost surely, 2^13649976 is an apocalyptic number.

It is an amenable number.

13649976 is an abundant number, since it is smaller than the sum of its proper divisors (23318904).

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

13649976 is a wasteful number, since it uses less digits than its factorization.

13649976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189595 (or 189588 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 13649976 is about 3694.5873923890. The cubic root of 13649976 is about 238.9886609584.

The spelling of 13649976 in words is "thirteen million, six hundred forty-nine thousand, nine hundred seventy-six".