13236870 has 16 divisors (see below), whose sum is σ = 31768560. Its totient is φ = 3529824.

The previous prime is 13236841. The next prime is 13236877. The reversal of 13236870 is 7863231.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 441229 = 13236870 / (1 + 3 + 2 + 3 + 6 + 8 + 7 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13236877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220585 + ... + 220644.

It is an arithmetic number, because the mean of its divisors is an integer number (1985535).

Almost surely, 2^13236870 is an apocalyptic number.

13236870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13236870 is an abundant number, since it is smaller than the sum of its proper divisors (18531690).

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

13236870 is a wasteful number, since it uses less digits than its factorization.

13236870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441239.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 13236870 is about 3638.2509534115. The cubic root of 13236870 is about 236.5529860258.

The spelling of 13236870 in words is "thirteen million, two hundred thirty-six thousand, eight hundred seventy".