13657401 has 24 divisors (see below), whose sum is σ = 20442240. Its totient is φ = 8781216.

The previous prime is 13657381. The next prime is 13657433. The reversal of 13657401 is 10475631.

13657401 is a `hidden beast` number, since 1 + 3 + 657 + 4 + 0 + 1 = 666.

It is not a de Polignac number, because 13657401 - 2⁶ = 13657337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13657471) 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 23 ways as a sum of consecutive naturals, for example, 34915 + ... + 35303.

It is an arithmetic number, because the mean of its divisors is an integer number (851760).

Almost surely, 2^13657401 is an apocalyptic number.

It is an amenable number.

13657401 is a deficient number, since it is larger than the sum of its proper divisors (6784839).

13657401 is a wasteful number, since it uses less digits than its factorization.

13657401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 13657401 is about 3695.5921041154. The cubic root of 13657401 is about 239.0319862887.

The spelling of 13657401 in words is "thirteen million, six hundred fifty-seven thousand, four hundred one".