13642956 has 36 divisors (see below), whose sum is σ = 35987952. Its totient is φ = 4349664.

The previous prime is 13642943. The next prime is 13642957. The reversal of 13642956 is 65924631.

It is a happy number.

13642956 is a `hidden beast` number, since 1 + 3 + 642 + 9 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×13642956² = 372260496835872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13642956.

It is not an unprimeable number, because it can be changed into a prime (13642957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7411 + ... + 9066.

Almost surely, 2^13642956 is an apocalyptic number.

It is an amenable number.

13642956 is an abundant number, since it is smaller than the sum of its proper divisors (22344996).

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

13642956 is a wasteful number, since it uses less digits than its factorization.

13642956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16510 (or 16505 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 13642956 is about 3693.6372317812. The cubic root of 13642956 is about 238.9476843763.

The spelling of 13642956 in words is "thirteen million, six hundred forty-two thousand, nine hundred fifty-six".