2303491 has 4 divisors (see below), whose sum is σ = 2312712. Its totient is φ = 2294272.

The previous prime is 2303489. The next prime is 2303501. The reversal of 2303491 is 1943032.

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

It is a cyclic number.

It is not a de Polignac number, because 2303491 - 2¹ = 2303489 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 (2303461) 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, 4225 + ... + 4738.

It is an arithmetic number, because the mean of its divisors is an integer number (578178).

2^2303491 is an apocalyptic number.

2303491 is a deficient number, since it is larger than the sum of its proper divisors (9221).

2303491 is an equidigital number, since it uses as much as digits as its factorization.

2303491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9220.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 2303491 is about 1517.7256010228. The cubic root of 2303491 is about 132.0673630764.

It can be divided in two parts, 230 and 3491, that added together give a square (3721 = 61²).

The spelling of 2303491 in words is "two million, three hundred three thousand, four hundred ninety-one".