13480405944 has 16 divisors (see below), whose sum is σ = 33701014920. Its totient is φ = 4493468640.

The previous prime is 13480405943. The next prime is 13480405997. The reversal of 13480405944 is 44950408431.

It is a super-2 number, since 2×13480405944² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13480405896 and 13480405905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13480405943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280841767 + ... + 280841814.

Almost surely, 2^13480405944 is an apocalyptic number.

It is an amenable number.

13480405944 is an abundant number, since it is smaller than the sum of its proper divisors (20220608976).

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

13480405944 is a wasteful number, since it uses less digits than its factorization.

13480405944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561683590 (or 561683586 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 13480405944 in words is "thirteen billion, four hundred eighty million, four hundred five thousand, nine hundred forty-four".