304542472 has 64 divisors (see below), whose sum is σ = 630604800. Its totient is φ = 137030400.

The previous prime is 304542457. The next prime is 304542479. The reversal of 304542472 is 274245403.

It is a happy number.

It is a super-2 number, since 2×304542472² = 185492234503741568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (304542479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 829633 + ... + 829999.

It is an arithmetic number, because the mean of its divisors is an integer number (9853200).

Almost surely, 2^304542472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304542472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315302400).

304542472 is an abundant number, since it is smaller than the sum of its proper divisors (326062328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

304542472 is a wasteful number, since it uses less digits than its factorization.

304542472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 31.

The square root of 304542472 is about 17451.1452919286. The cubic root of 304542472 is about 672.7947949092.

Adding to 304542472 its reverse (274245403), we get a palindrome (578787875).

The spelling of 304542472 in words is "three hundred four million, five hundred forty-two thousand, four hundred seventy-two".