13400020992 has 48 divisors (see below), whose sum is σ = 35724681720. Its totient is φ = 4466671616.

The previous prime is 13400020913. The next prime is 13400021009. The reversal of 13400020992 is 29902000431.

It is a tau number, because it is divible by the number of its divisors (48).

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, 1084353 + ... + 1096640.

Almost surely, 2^13400020992 is an apocalyptic number.

13400020992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13400020992 is an abundant number, since it is smaller than the sum of its proper divisors (22324660728).

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

13400020992 is an equidigital number, since it uses as much as digits as its factorization.

13400020992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181018 (or 2180998 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The spelling of 13400020992 in words is "thirteen billion, four hundred million, twenty thousand, nine hundred ninety-two".