2392640 has 28 divisors (see below), whose sum is σ = 5698236. Its totient is φ = 956928.

The previous prime is 2392619. The next prime is 2392661. The reversal of 2392640 is 462932.

It is an interprime number because it is at equal distance from previous prime (2392619) and next prime (2392661).

It can be written as a sum of positive squares in 2 ways, for example, as 1700416 + 692224 = 1304^2 + 832^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3419 + ... + 4058.

2^2392640 is an apocalyptic number.

2392640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2392640 is an abundant number, since it is smaller than the sum of its proper divisors (3305596).

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

2392640 is an equidigital number, since it uses as much as digits as its factorization.

2392640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7494 (or 7484 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 2392640 is about 1546.8160847366. The cubic root of 2392640 is about 133.7495880268.

The spelling of 2392640 in words is "two million, three hundred ninety-two thousand, six hundred forty".