304352013 has 48 divisors (see below), whose sum is σ = 506155520. Its totient is φ = 158905152.

The previous prime is 304351991. The next prime is 304352021. The reversal of 304352013 is 310253403.

It is not a de Polignac number, because 304352013 - 2¹⁰ = 304350989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304352063) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 335106 + ... + 336012.

Almost surely, 2^304352013 is an apocalyptic number.

It is an amenable number.

304352013 is a deficient number, since it is larger than the sum of its proper divisors (201803507).

304352013 is a wasteful number, since it uses less digits than its factorization.

304352013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994 (or 965 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 304352013 is about 17445.6875186964. The cubic root of 304352013 is about 672.6545117440.

The spelling of 304352013 in words is "three hundred four million, three hundred fifty-two thousand, thirteen".