13400881 has 8 divisors (see below), whose sum is σ = 15059520. Its totient is φ = 11831952.

The previous prime is 13400867. The next prime is 13400887. The reversal of 13400881 is 18800431.

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 13400881 - 2¹³ = 13392689 is a prime.

It is a super-2 number, since 2×13400881² = 359167223152322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13400887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22111 + ... + 22708.

It is an arithmetic number, because the mean of its divisors is an integer number (1882440).

Almost surely, 2^13400881 is an apocalyptic number.

It is an amenable number.

13400881 is a deficient number, since it is larger than the sum of its proper divisors (1658639).

13400881 is a wasteful number, since it uses less digits than its factorization.

13400881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44855.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 13400881 is about 3660.7213769966. The cubic root of 13400881 is about 237.5259790603.

The spelling of 13400881 in words is "thirteen million, four hundred thousand, eight hundred eighty-one".