2640192 has 28 divisors (see below), whose sum is σ = 6986016. Its totient is φ = 880000.

The previous prime is 2640181. The next prime is 2640217. The reversal of 2640192 is 2910462.

It is a super-2 number, since 2×2640192² = 13941227593728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6684 + ... + 7067.

2^2640192 is an apocalyptic number.

It is an amenable number.

2640192 is an abundant number, since it is smaller than the sum of its proper divisors (4345824).

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

2640192 is a wasteful number, since it uses less digits than its factorization.

2640192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13766 (or 13756 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2640192 is about 1624.8667637686. The cubic root of 2640192 is about 138.2118150272.

The spelling of 2640192 in words is "two million, six hundred forty thousand, one hundred ninety-two".