13856288440 has 16 divisors (see below), whose sum is σ = 31176649080. Its totient is φ = 5542515360.

The previous prime is 13856288437. The next prime is 13856288477. The reversal of 13856288440 is 4488265831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173203566 + ... + 173203645.

Almost surely, 2^13856288440 is an apocalyptic number.

13856288440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13856288440 is an abundant number, since it is smaller than the sum of its proper divisors (17320360640).

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

13856288440 is a wasteful number, since it uses less digits than its factorization.

13856288440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346407222 (or 346407218 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 49.

The spelling of 13856288440 in words is "thirteen billion, eight hundred fifty-six million, two hundred eighty-eight thousand, four hundred forty".