2640360 has 32 divisors (see below), whose sum is σ = 7921440. Its totient is φ = 704064.

The previous prime is 2640349. The next prime is 2640361. The reversal of 2640360 is 630462.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2640361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10882 + ... + 11121.

It is an arithmetic number, because the mean of its divisors is an integer number (247545).

2^2640360 is an apocalyptic number.

2640360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2640360 is an abundant number, since it is smaller than the sum of its proper divisors (5281080).

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

2640360 is a wasteful number, since it uses less digits than its factorization.

2640360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22017 (or 22013 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2640360 is about 1624.9184594927. The cubic root of 2640360 is about 138.2147465176.

The spelling of 2640360 in words is "two million, six hundred forty thousand, three hundred sixty".