2913390864 has 120 divisors (see below), whose sum is σ = 8588503872. Its totient is φ = 920113920.

The previous prime is 2913390853. The next prime is 2913390871. The reversal of 2913390864 is 4680933192.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 350274 + ... + 358494.

Almost surely, 2^2913390864 is an apocalyptic number.

2913390864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2913390864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4294251936).

2913390864 is an abundant number, since it is smaller than the sum of its proper divisors (5675113008).

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

2913390864 is a wasteful number, since it uses less digits than its factorization.

2913390864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8365 (or 8356 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 2913390864 is about 53975.8359268293. The cubic root of 2913390864 is about 1428.2347141436.

The spelling of 2913390864 in words is "two billion, nine hundred thirteen million, three hundred ninety thousand, eight hundred sixty-four".