13401939 has 16 divisors (see below), whose sum is σ = 19084032. Its totient is φ = 8345568.

The previous prime is 13401937. The next prime is 13401989. The reversal of 13401939 is 93910431.

It is not a de Polignac number, because 13401939 - 2¹ = 13401937 is a prime.

It is a super-2 number, since 2×13401939² = 359223937919442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13401931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 709 + ... + 5225.

It is an arithmetic number, because the mean of its divisors is an integer number (1192752).

Almost surely, 2^13401939 is an apocalyptic number.

13401939 is a deficient number, since it is larger than the sum of its proper divisors (5682093).

13401939 is a wasteful number, since it uses less digits than its factorization.

13401939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4586.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 13401939 is about 3660.8658811817. The cubic root of 13401939 is about 237.5322297904.

The spelling of 13401939 in words is "thirteen million, four hundred one thousand, nine hundred thirty-nine".