4092640 has 24 divisors (see below), whose sum is σ = 9669240. Its totient is φ = 1636992.

The previous prime is 4092637. The next prime is 4092659. The reversal of 4092640 is 462904.

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, 12630 + ... + 12949.

It is an arithmetic number, because the mean of its divisors is an integer number (402885).

Almost surely, 2^4092640 is an apocalyptic number.

4092640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4092640 is an abundant number, since it is smaller than the sum of its proper divisors (5576600).

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

4092640 is a wasteful number, since it uses less digits than its factorization.

4092640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25594 (or 25586 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 4092640 is about 2023.0274343172. The cubic root of 4092640 is about 159.9562380317.

The spelling of 4092640 in words is "four million, ninety-two thousand, six hundred forty".