13402885 has 32 divisors (see below), whose sum is σ = 18437760. Its totient is φ = 9289728.

The previous prime is 13402877. The next prime is 13402889. The reversal of 13402885 is 58820431.

It is a cyclic number.

It is not a de Polignac number, because 13402885 - 2³ = 13402877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402889) 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, 69349 + ... + 69541.

It is an arithmetic number, because the mean of its divisors is an integer number (576180).

It is a vampire number, since it can be written as 3281 ⋅ 4085 (with its own digits).

Almost surely, 2^13402885 is an apocalyptic number.

It is an amenable number.

13402885 is a deficient number, since it is larger than the sum of its proper divisors (5034875).

13402885 is a wasteful number, since it uses less digits than its factorization.

13402885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 13402885 is about 3660.9950833073. The cubic root of 13402885 is about 237.5378185390.

It can be divided in two parts, 1340 and 2885, that added together give a square (4225 = 65²).

The spelling of 13402885 in words is "thirteen million, four hundred two thousand, eight hundred eighty-five".