13867400240 has 40 divisors (see below), whose sum is σ = 32991520848. Its totient is φ = 5417959680.

The previous prime is 13867400207. The next prime is 13867400269. The reversal of 13867400240 is 4200476831.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13867400240.

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, 2012171 + ... + 2019050.

Almost surely, 2^13867400240 is an apocalyptic number.

13867400240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13867400240 is an abundant number, since it is smaller than the sum of its proper divisors (19124120608).

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

13867400240 is a wasteful number, since it uses less digits than its factorization.

13867400240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031277 (or 4031271 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 13867400240 in words is "thirteen billion, eight hundred sixty-seven million, four hundred thousand, two hundred forty".