13642918 has 8 divisors (see below), whose sum is σ = 20486160. Its totient is φ = 6814200.

The previous prime is 13642907. The next prime is 13642919. The reversal of 13642918 is 81924631.

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

It is a super-2 number, since 2×13642918² = 372258423109448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13642919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 858 + ... + 5293.

It is an arithmetic number, because the mean of its divisors is an integer number (2560770).

Almost surely, 2^13642918 is an apocalyptic number.

13642918 is a deficient number, since it is larger than the sum of its proper divisors (6843242).

13642918 is a wasteful number, since it uses less digits than its factorization.

13642918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7262.

The product of its digits is 10368, while the sum is 34.

The square root of 13642918 is about 3693.6320877965. The cubic root of 13642918 is about 238.9474625275.

The spelling of 13642918 in words is "thirteen million, six hundred forty-two thousand, nine hundred eighteen".