13388457 has 8 divisors (see below), whose sum is σ = 18154080. Its totient is φ = 8774240.

The previous prime is 13388449. The next prime is 13388471. The reversal of 13388457 is 75488331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13388457 - 2³ = 13388449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13388057) 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 7 ways as a sum of consecutive naturals, for example, 37644 + ... + 37997.

It is an arithmetic number, because the mean of its divisors is an integer number (2269260).

Almost surely, 2^13388457 is an apocalyptic number.

It is an amenable number.

13388457 is a deficient number, since it is larger than the sum of its proper divisors (4765623).

13388457 is an equidigital number, since it uses as much as digits as its factorization.

13388457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75703.

The product of its digits is 80640, while the sum is 39.

The square root of 13388457 is about 3659.0240502079. The cubic root of 13388457 is about 237.4525526639.

The spelling of 13388457 in words is "thirteen million, three hundred eighty-eight thousand, four hundred fifty-seven".