13439436 has 24 divisors (see below), whose sum is σ = 32207280. Its totient is φ = 4358592.

The previous prime is 13439417. The next prime is 13439449. The reversal of 13439436 is 63493431.

It is a junction number, because it is equal to n+sod(n) for n = 13439397 and 13439406.

It is an unprimeable number.

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, 14691 + ... + 15578.

It is an arithmetic number, because the mean of its divisors is an integer number (1341970).

Almost surely, 2^13439436 is an apocalyptic number.

It is an amenable number.

13439436 is an abundant number, since it is smaller than the sum of its proper divisors (18767844).

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

13439436 is a wasteful number, since it uses less digits than its factorization.

13439436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30313 (or 30311 counting only the distinct ones).

The product of its digits is 23328, while the sum is 33.

The square root of 13439436 is about 3665.9836333514. The cubic root of 13439436 is about 237.7535522981.

The spelling of 13439436 in words is "thirteen million, four hundred thirty-nine thousand, four hundred thirty-six".