13618885 has 8 divisors (see below), whose sum is σ = 18677376. Its totient is φ = 9338640.

The previous prime is 13618879. The next prime is 13618903. The reversal of 13618885 is 58881631.

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

It is not a de Polignac number, because 13618885 - 2⁹ = 13618373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194521 + ... + 194590.

It is an arithmetic number, because the mean of its divisors is an integer number (2334672).

Almost surely, 2^13618885 is an apocalyptic number.

It is an amenable number.

13618885 is a deficient number, since it is larger than the sum of its proper divisors (5058491).

13618885 is an equidigital number, since it uses as much as digits as its factorization.

13618885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389123.

The product of its digits is 46080, while the sum is 40.

The square root of 13618885 is about 3690.3773519791. The cubic root of 13618885 is about 238.8070722363.

The spelling of 13618885 in words is "thirteen million, six hundred eighteen thousand, eight hundred eighty-five".