2440664 has 16 divisors (see below), whose sum is σ = 4817400. Its totient is φ = 1156032.

The previous prime is 2440657. The next prime is 2440667. The reversal of 2440664 is 4660442.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7877 + ... + 8180.

2^2440664 is an apocalyptic number.

It is an amenable number.

2440664 is a deficient number, since it is larger than the sum of its proper divisors (2376736).

2440664 is a wasteful number, since it uses less digits than its factorization.

2440664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16082 (or 16078 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 2440664 is about 1562.2624619442. The cubic root of 2440664 is about 134.6385208418.

The spelling of 2440664 in words is "two million, four hundred forty thousand, six hundred sixty-four".