13630956 has 12 divisors (see below), whose sum is σ = 31805592. Its totient is φ = 4543648.

The previous prime is 13630937. The next prime is 13630997. The reversal of 13630956 is 65903631.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×13630956² = 371605922947872, which contains 22 as substring.

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, 567945 + ... + 567968.

It is an arithmetic number, because the mean of its divisors is an integer number (2650466).

Almost surely, 2^13630956 is an apocalyptic number.

It is an amenable number.

13630956 is an abundant number, since it is smaller than the sum of its proper divisors (18174636).

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

13630956 is a wasteful number, since it uses less digits than its factorization.

13630956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135920 (or 1135918 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 13630956 is about 3692.0124593506. The cubic root of 13630956 is about 238.8776063738.

The spelling of 13630956 in words is "thirteen million, six hundred thirty thousand, nine hundred fifty-six".