13331999940 has 48 divisors (see below), whose sum is σ = 42662401152. Its totient is φ = 3047314176.

The previous prime is 13331999939. The next prime is 13331999987. The reversal of 13331999940 is 4999913331.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15871009 + ... + 15871848.

It is an arithmetic number, because the mean of its divisors is an integer number (888800024).

Almost surely, 2^13331999940 is an apocalyptic number.

13331999940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13331999940 is an abundant number, since it is smaller than the sum of its proper divisors (29330401212).

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

13331999940 is a wasteful number, since it uses less digits than its factorization.

13331999940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31742876 (or 31742874 counting only the distinct ones).

The product of its (nonzero) digits is 708588, while the sum is 51.

The spelling of 13331999940 in words is "thirteen billion, three hundred thirty-one million, nine hundred ninety-nine thousand, nine hundred forty".