13908109404 has 24 divisors (see below), whose sum is σ = 37088291968. Its totient is φ = 3973745520.

The previous prime is 13908109393. The next prime is 13908109409. The reversal of 13908109404 is 40490180931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13908109409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82786282 + ... + 82786449.

Almost surely, 2^13908109404 is an apocalyptic number.

13908109404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13908109404 is an abundant number, since it is smaller than the sum of its proper divisors (23180182564).

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

13908109404 is a wasteful number, since it uses less digits than its factorization.

13908109404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165572745 (or 165572743 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The spelling of 13908109404 in words is "thirteen billion, nine hundred eight million, one hundred nine thousand, four hundred four".