2640974 has 32 divisors (see below), whose sum is σ = 4790016. Its totient is φ = 1068480.

The previous prime is 2640973. The next prime is 2640997. The reversal of 2640974 is 4790462.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2640974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24629 + ... + 24735.

It is an arithmetic number, because the mean of its divisors is an integer number (149688).

2^2640974 is an apocalyptic number.

2640974 is a deficient number, since it is larger than the sum of its proper divisors (2149042).

2640974 is a wasteful number, since it uses less digits than its factorization.

2640974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 2640974 is about 1625.1073810675. The cubic root of 2640974 is about 138.2254593594.

The spelling of 2640974 in words is "two million, six hundred forty thousand, nine hundred seventy-four".