13440379072 has 28 divisors (see below), whose sum is σ = 26680308336. Its totient is φ = 6717781760.

The previous prime is 13440378997. The next prime is 13440379097. The reversal of 13440379072 is 27097304431.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149622 + ... + 221962.

Almost surely, 2^13440379072 is an apocalyptic number.

It is an amenable number.

13440379072 is a deficient number, since it is larger than the sum of its proper divisors (13239929264).

13440379072 is an equidigital number, since it uses as much as digits as its factorization.

13440379072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75256 (or 75246 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 13440379072 in words is "thirteen billion, four hundred forty million, three hundred seventy-nine thousand, seventy-two".