13400757 has 12 divisors (see below), whose sum is σ = 20375680. Its totient is φ = 8463528.

The previous prime is 13400741. The next prime is 13400767. The reversal of 13400757 is 75700431.

It is not a de Polignac number, because 13400757 - 2⁴ = 13400741 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13400757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39013 + ... + 39354.

Almost surely, 2^13400757 is an apocalyptic number.

It is an amenable number.

13400757 is a deficient number, since it is larger than the sum of its proper divisors (6974923).

13400757 is a wasteful number, since it uses less digits than its factorization.

13400757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78392 (or 78389 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 13400757 is about 3660.7044404049. The cubic root of 13400757 is about 237.5252464390.

The spelling of 13400757 in words is "thirteen million, four hundred thousand, seven hundred fifty-seven".