13940492288 has 36 divisors (see below), whose sum is σ = 27884865645. Its totient is φ = 6967574528.

The previous prime is 13940492281. The next prime is 13940492309. The reversal of 13940492288 is 88229404931.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 13935330304 + 5161984 = 118048^2 + 2272^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=83488.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13940492281) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5341928 + ... + 5344536.

Almost surely, 2^13940492288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13940492288

13940492288 is an abundant number, since it is smaller than the sum of its proper divisors (13944373357).

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

13940492288 is an frugal number, since it uses more digits than its factorization.

13940492288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5240 (or 2611 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 50.

Multiplying 13940492288 by its sum of digits (50), we get a square (697024614400 = 834880²).

The spelling of 13940492288 in words is "thirteen billion, nine hundred forty million, four hundred ninety-two thousand, two hundred eighty-eight".