2640005364 has 24 divisors (see below), whose sum is σ = 6169050720. Its totient is φ = 878710624.

The previous prime is 2640005341. The next prime is 2640005371. The reversal of 2640005364 is 4635000462.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152859 + ... + 169250.

It is an arithmetic number, because the mean of its divisors is an integer number (257043780).

Almost surely, 2^2640005364 is an apocalyptic number.

It is an amenable number.

2640005364 is an abundant number, since it is smaller than the sum of its proper divisors (3529045356).

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

2640005364 is a wasteful number, since it uses less digits than its factorization.

2640005364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322799 (or 322797 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 2640005364 is about 51380.9825129882. The cubic root of 2640005364 is about 1382.0855820498.

The spelling of 2640005364 in words is "two billion, six hundred forty million, five thousand, three hundred sixty-four".