14015002640 has 40 divisors (see below), whose sum is σ = 34501642200. Its totient is φ = 5276235776.

The previous prime is 14015002627. The next prime is 14015002669. The reversal of 14015002640 is 4620051041.

It can be written as a sum of positive squares in 4 ways, for example, as 7288378384 + 6726624256 = 85372^2 + 82016^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5151215 + ... + 5153934.

It is an arithmetic number, because the mean of its divisors is an integer number (862541055).

Almost surely, 2^14015002640 is an apocalyptic number.

14015002640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14015002640 is an abundant number, since it is smaller than the sum of its proper divisors (20486639560).

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

14015002640 is a wasteful number, since it uses less digits than its factorization.

14015002640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10305179 (or 10305173 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 14015002640 its reverse (4620051041), we get a palindrome (18635053681).

The spelling of 14015002640 in words is "fourteen billion, fifteen million, two thousand, six hundred forty".