13399236 has 24 divisors (see below), whose sum is σ = 34739040. Its totient is φ = 4466376.

The previous prime is 13399231. The next prime is 13399241. The reversal of 13399236 is 63299331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13399231) and next prime (13399241).

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 13399236.

It is not an unprimeable number, because it can be changed into a prime (13399231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61926 + ... + 62141.

It is an arithmetic number, because the mean of its divisors is an integer number (1447460).

Almost surely, 2^13399236 is an apocalyptic number.

It is an amenable number.

13399236 is an abundant number, since it is smaller than the sum of its proper divisors (21339804).

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

13399236 is a wasteful number, since it uses less digits than its factorization.

13399236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124080 (or 124072 counting only the distinct ones).

The product of its digits is 26244, while the sum is 36.

The square root of 13399236 is about 3660.4966876095. The cubic root of 13399236 is about 237.5162596440.

The spelling of 13399236 in words is "thirteen million, three hundred ninety-nine thousand, two hundred thirty-six".