304540442 has 16 divisors (see below), whose sum is σ = 463905792. Its totient is φ = 149911440.

The previous prime is 304540433. The next prime is 304540463. The reversal of 304540442 is 244045403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153368 + ... + 155340.

It is an arithmetic number, because the mean of its divisors is an integer number (28994112).

Almost surely, 2^304540442 is an apocalyptic number.

304540442 is a deficient number, since it is larger than the sum of its proper divisors (159365350).

304540442 is a wasteful number, since it uses less digits than its factorization.

304540442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 304540442 is about 17451.0871294599. The cubic root of 304540442 is about 672.7933000149.

Adding to 304540442 its reverse (244045403), we get a palindrome (548585845).

The spelling of 304540442 in words is "three hundred four million, five hundred forty thousand, four hundred forty-two".