13400344 has 16 divisors (see below), whose sum is σ = 25294320. Its totient is φ = 6655200.

The previous prime is 13400341. The next prime is 13400353. The reversal of 13400344 is 44300431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400341) 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 3 ways as a sum of consecutive naturals, for example, 4339 + ... + 6754.

It is an arithmetic number, because the mean of its divisors is an integer number (1580895).

Almost surely, 2^13400344 is an apocalyptic number.

It is an amenable number.

13400344 is a deficient number, since it is larger than the sum of its proper divisors (11893976).

13400344 is a wasteful number, since it uses less digits than its factorization.

13400344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11250 (or 11246 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 13400344 is about 3660.6480300624. The cubic root of 13400344 is about 237.5228063048.

Adding to 13400344 its reverse (44300431), we get a palindrome (57700775).

The spelling of 13400344 in words is "thirteen million, four hundred thousand, three hundred forty-four".