13940005530 has 64 divisors (see below), whose sum is σ = 36514395648. Its totient is φ = 3377828160.

The previous prime is 13940005523. The next prime is 13940005543. The reversal of 13940005530 is 3550004931.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 805549 + ... + 822671.

It is an arithmetic number, because the mean of its divisors is an integer number (570537432).

Almost surely, 2^13940005530 is an apocalyptic number.

13940005530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13940005530 is an abundant number, since it is smaller than the sum of its proper divisors (22574390118).

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

13940005530 is a wasteful number, since it uses less digits than its factorization.

13940005530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19611.

The product of its (nonzero) digits is 8100, while the sum is 30.

The spelling of 13940005530 in words is "thirteen billion, nine hundred forty million, five thousand, five hundred thirty".