304640572 has 12 divisors (see below), whose sum is σ = 534171960. Its totient is φ = 152020016.

The previous prime is 304640551. The next prime is 304640587. The reversal of 304640572 is 275046403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72778 + ... + 76849.

It is an arithmetic number, because the mean of its divisors is an integer number (44514330).

Almost surely, 2^304640572 is an apocalyptic number.

It is an amenable number.

304640572 is a deficient number, since it is larger than the sum of its proper divisors (229531388).

304640572 is a wasteful number, since it uses less digits than its factorization.

304640572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150140 (or 150138 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 304640572 is about 17453.9557693951. The cubic root of 304640572 is about 672.8670279472.

Adding to 304640572 its reverse (275046403), we get a palindrome (579686975).

The spelling of 304640572 in words is "three hundred four million, six hundred forty thousand, five hundred seventy-two".