13256670 has 32 divisors (see below), whose sum is σ = 36361728. Its totient is φ = 3030048.

The previous prime is 13256657. The next prime is 13256701. The reversal of 13256670 is 7665231.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31354 + ... + 31773.

It is an arithmetic number, because the mean of its divisors is an integer number (1136304).

Almost surely, 2^13256670 is an apocalyptic number.

13256670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13256670 is an abundant number, since it is smaller than the sum of its proper divisors (23105058).

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

13256670 is a wasteful number, since it uses less digits than its factorization.

13256670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63144.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 13256670 is about 3640.9710243285. The cubic root of 13256670 is about 236.6708743108.

The spelling of 13256670 in words is "thirteen million, two hundred fifty-six thousand, six hundred seventy".