2640732 has 24 divisors (see below), whose sum is σ = 6189456. Its totient is φ = 876288.

The previous prime is 2640721. The next prime is 2640739. The reversal of 2640732 is 2370462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640739) 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, 3718 + ... + 4370.

It is an arithmetic number, because the mean of its divisors is an integer number (257894).

2^2640732 is an apocalyptic number.

It is an amenable number.

2640732 is an abundant number, since it is smaller than the sum of its proper divisors (3548724).

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

2640732 is a wasteful number, since it uses less digits than its factorization.

2640732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997 (or 995 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 2640732 is about 1625.0329227434. The cubic root of 2640732 is about 138.2212372324.

The spelling of 2640732 in words is "two million, six hundred forty thousand, seven hundred thirty-two".