4093640 has 32 divisors (see below), whose sum is σ = 9531000. Its totient is φ = 1580544.

The previous prime is 4093637. The next prime is 4093679. The reversal of 4093640 is 463904.

It can be written as a sum of positive squares in 4 ways, for example, as 2439844 + 1653796 = 1562^2 + 1286^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605 + ... + 2924.

Almost surely, 2^4093640 is an apocalyptic number.

4093640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4093640 is an abundant number, since it is smaller than the sum of its proper divisors (5437360).

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

4093640 is a wasteful number, since it uses less digits than its factorization.

4093640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569 (or 3565 counting only the distinct ones).

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

The square root of 4093640 is about 2023.2745735564. The cubic root of 4093640 is about 159.9692649297.

The spelling of 4093640 in words is "four million, ninety-three thousand, six hundred forty".