4490306623 has 4 divisors (see below), whose sum is σ = 4898516328. Its totient is φ = 4082096920.

The previous prime is 4490306609. The next prime is 4490306641. The reversal of 4490306623 is 3266030944.

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

It is not a de Polignac number, because 4490306623 - 2⁵ = 4490306591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4490306663) 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, 204104836 + ... + 204104857.

It is an arithmetic number, because the mean of its divisors is an integer number (1224629082).

Almost surely, 2^4490306623 is an apocalyptic number.

4490306623 is a deficient number, since it is larger than the sum of its proper divisors (408209705).

4490306623 is a wasteful number, since it uses less digits than its factorization.

4490306623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408209704.

The product of its (nonzero) digits is 93312, while the sum is 37.

The square root of 4490306623 is about 67009.7502084585. The cubic root of 4490306623 is about 1649.7773342626. Note that the first 3 decimals are identical.

It can be divided in two parts, 4490 and 306623, that added together give a palindrome (311113).

The spelling of 4490306623 in words is "four billion, four hundred ninety million, three hundred six thousand, six hundred twenty-three".