13420918 has 8 divisors (see below), whose sum is σ = 23007312. Its totient is φ = 5751816.

The previous prime is 13420873. The next prime is 13420943. The reversal of 13420918 is 81902431.

It is a happy number.

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

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479305 + ... + 479332.

It is an arithmetic number, because the mean of its divisors is an integer number (2875914).

Almost surely, 2^13420918 is an apocalyptic number.

13420918 is a deficient number, since it is larger than the sum of its proper divisors (9586394).

13420918 is an equidigital number, since it uses as much as digits as its factorization.

13420918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958646.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 13420918 is about 3663.4571104354. The cubic root of 13420918 is about 237.6443030713.

The spelling of 13420918 in words is "thirteen million, four hundred twenty thousand, nine hundred eighteen".