13421908 has 12 divisors (see below), whose sum is σ = 24870132. Its totient is φ = 6316160.

The previous prime is 13421897. The next prime is 13421917. The reversal of 13421908 is 80912431.

It is a happy number.

13421908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10771524 + 2650384 = 3282^2 + 1628^2 .

It is a super-2 number, since 2×13421908² = 360295228720928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98623 + ... + 98758.

It is an arithmetic number, because the mean of its divisors is an integer number (2072511).

Almost surely, 2^13421908 is an apocalyptic number.

It is an amenable number.

13421908 is a deficient number, since it is larger than the sum of its proper divisors (11448224).

13421908 is a wasteful number, since it uses less digits than its factorization.

13421908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197402 (or 197400 counting only the distinct ones).

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

The square root of 13421908 is about 3663.5922262173. The cubic root of 13421908 is about 237.6501462402.

The spelling of 13421908 in words is "thirteen million, four hundred twenty-one thousand, nine hundred eight".