13930479380 has 24 divisors (see below), whose sum is σ = 29749839840. Its totient is φ = 5477747360.

The previous prime is 13930479359. The next prime is 13930479397. The reversal of 13930479380 is 8397403931.

It is a happy number.

It is a congruent number.

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, 5901566 + ... + 5903925.

It is an arithmetic number, because the mean of its divisors is an integer number (1239576660).

Almost surely, 2^13930479380 is an apocalyptic number.

13930479380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13930479380 is an abundant number, since it is smaller than the sum of its proper divisors (15819360460).

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

13930479380 is a wasteful number, since it uses less digits than its factorization.

13930479380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11805559 (or 11805557 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 47.

The spelling of 13930479380 in words is "thirteen billion, nine hundred thirty million, four hundred seventy-nine thousand, three hundred eighty".