13375818 has 24 divisors (see below), whose sum is σ = 29917056. Its totient is φ = 4314600.

The previous prime is 13375807. The next prime is 13375819. The reversal of 13375818 is 81857331.

It is not an unprimeable number, because it can be changed into a prime (13375819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11428 + ... + 12543.

It is an arithmetic number, because the mean of its divisors is an integer number (1246544).

Almost surely, 2^13375818 is an apocalyptic number.

13375818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13375818 is an abundant number, since it is smaller than the sum of its proper divisors (16541238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13375818 is a wasteful number, since it uses less digits than its factorization.

13375818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24010 (or 24007 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 13375818 is about 3657.2965425297. The cubic root of 13375818 is about 237.3778089824.

The spelling of 13375818 in words is "thirteen million, three hundred seventy-five thousand, eight hundred eighteen".