304552013 has 4 divisors (see below), whose sum is σ = 304620348. Its totient is φ = 304483680.

The previous prime is 304551979. The next prime is 304552021. The reversal of 304552013 is 310255403.

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 256416169 + 48135844 = 16013^2 + 6938^2 .

It is a cyclic number.

It is not a de Polignac number, because 304552013 - 2¹⁰ = 304550989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 304552013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304552033) 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, 26978 + ... + 36563.

It is an arithmetic number, because the mean of its divisors is an integer number (76155087).

Almost surely, 2^304552013 is an apocalyptic number.

It is an amenable number.

304552013 is a deficient number, since it is larger than the sum of its proper divisors (68335).

304552013 is an equidigital number, since it uses as much as digits as its factorization.

304552013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68334.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 304552013 is about 17451.4186529348. The cubic root of 304552013 is about 672.8018208237.

The spelling of 304552013 in words is "three hundred four million, five hundred fifty-two thousand, thirteen".