13402344 has 16 divisors (see below), whose sum is σ = 33505920. Its totient is φ = 4467440.

The previous prime is 13402339. The next prime is 13402373. The reversal of 13402344 is 44320431.

It is a self number, because there is not a number n which added to its sum of digits gives 13402344.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279192 + ... + 279239.

It is an arithmetic number, because the mean of its divisors is an integer number (2094120).

Almost surely, 2^13402344 is an apocalyptic number.

It is an amenable number.

13402344 is an abundant number, since it is smaller than the sum of its proper divisors (20103576).

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

13402344 is a wasteful number, since it uses less digits than its factorization.

13402344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558440 (or 558436 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 13402344 is about 3660.9211955463. The cubic root of 13402344 is about 237.5346224687.

Adding to 13402344 its reverse (44320431), we get a palindrome (57722775).

The spelling of 13402344 in words is "thirteen million, four hundred two thousand, three hundred forty-four".