4520491 has 8 divisors (see below), whose sum is σ = 4727520. Its totient is φ = 4316928.

The previous prime is 4520449. The next prime is 4520497. The reversal of 4520491 is 1940254.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4520491 - 2⁹ = 4519979 is a prime.

It is a Duffinian number.

4520491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4520497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2010 + ... + 3616.

It is an arithmetic number, because the mean of its divisors is an integer number (590940).

Almost surely, 2^4520491 is an apocalyptic number.

4520491 is a deficient number, since it is larger than the sum of its proper divisors (207029).

4520491 is a wasteful number, since it uses less digits than its factorization.

4520491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 4520491 is about 2126.1446328978. The cubic root of 4520491 is about 165.3465748623.

The spelling of 4520491 in words is "four million, five hundred twenty thousand, four hundred ninety-one".