4490393 has 4 divisors (see below), whose sum is σ = 4564068. Its totient is φ = 4416720.

The previous prime is 4490377. The next prime is 4490399. The reversal of 4490393 is 3930944.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1056784 + 3433609 = 1028^2 + 1853^2 .

It is a cyclic number.

It is not a de Polignac number, because 4490393 - 2⁴ = 4490377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4490399) 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, 36746 + ... + 36867.

It is an arithmetic number, because the mean of its divisors is an integer number (1141017).

Almost surely, 2^4490393 is an apocalyptic number.

It is an amenable number.

4490393 is a deficient number, since it is larger than the sum of its proper divisors (73675).

4490393 is an equidigital number, since it uses as much as digits as its factorization.

4490393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73674.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 4490393 is about 2119.0547420961. The cubic root of 4490393 is about 164.9787912746.

The spelling of 4490393 in words is "four million, four hundred ninety thousand, three hundred ninety-three".