13400375 has 32 divisors (see below), whose sum is σ = 17971200. Its totient is φ = 9952800.

The previous prime is 13400371. The next prime is 13400389. The reversal of 13400375 is 57300431.

It is a happy number.

It is not a de Polignac number, because 13400375 - 2² = 13400371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 13400375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169586 + ... + 169664.

It is an arithmetic number, because the mean of its divisors is an integer number (561600).

Almost surely, 2^13400375 is an apocalyptic number.

13400375 is a deficient number, since it is larger than the sum of its proper divisors (4570825).

13400375 is an equidigital number, since it uses as much as digits as its factorization.

13400375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 13400375 is about 3660.6522642830. The cubic root of 13400375 is about 237.5229894644.

The spelling of 13400375 in words is "thirteen million, four hundred thousand, three hundred seventy-five".