304573013 has 4 divisors (see below), whose sum is σ = 305758380. Its totient is φ = 303387648.

The previous prime is 304573001. The next prime is 304573043. The reversal of 304573013 is 310375403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310375403 = 13 ⋅23875031.

It can be written as a sum of positive squares in 2 ways, for example, as 255264529 + 49308484 = 15977^2 + 7022^2 .

It is a cyclic number.

It is not a de Polignac number, because 304573013 - 2²⁸ = 36137557 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 (304573043) 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, 592298 + ... + 592811.

It is an arithmetic number, because the mean of its divisors is an integer number (76439595).

Almost surely, 2^304573013 is an apocalyptic number.

It is an amenable number.

304573013 is a deficient number, since it is larger than the sum of its proper divisors (1185367).

304573013 is a wasteful number, since it uses less digits than its factorization.

304573013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185366.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 304573013 is about 17452.0203128463. The cubic root of 304573013 is about 672.8172845353.

The spelling of 304573013 in words is "three hundred four million, five hundred seventy-three thousand, thirteen".