13913387240 has 32 divisors (see below), whose sum is σ = 32666215680. Its totient is φ = 5323382592.

The previous prime is 13913387239. The next prime is 13913387297. The reversal of 13913387240 is 4278331931.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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, 7560704 + ... + 7562543.

It is an arithmetic number, because the mean of its divisors is an integer number (1020819240).

Almost surely, 2^13913387240 is an apocalyptic number.

13913387240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13913387240 is an abundant number, since it is smaller than the sum of its proper divisors (18752828440).

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

13913387240 is a wasteful number, since it uses less digits than its factorization.

13913387240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15123281 (or 15123277 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 13913387240 in words is "thirteen billion, nine hundred thirteen million, three hundred eighty-seven thousand, two hundred forty".