13453818 has 16 divisors (see below), whose sum is σ = 30751680. Its totient is φ = 3843936.

The previous prime is 13453807. The next prime is 13453823. The reversal of 13453818 is 81835431.

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, 160123 + ... + 160206.

It is an arithmetic number, because the mean of its divisors is an integer number (1921980).

Almost surely, 2^13453818 is an apocalyptic number.

13453818 is an abundant number, since it is smaller than the sum of its proper divisors (17297862).

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

13453818 is a wasteful number, since it uses less digits than its factorization.

13453818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320341.

The product of its digits is 11520, while the sum is 33.

The square root of 13453818 is about 3667.9446560710. The cubic root of 13453818 is about 237.8383314656.

The spelling of 13453818 in words is "thirteen million, four hundred fifty-three thousand, eight hundred eighteen".