304542238 has 48 divisors (see below), whose sum is σ = 618035040. Its totient is φ = 109517760.

The previous prime is 304542221. The next prime is 304542239. The reversal of 304542238 is 832245403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304542239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15108 + ... + 28936.

It is an arithmetic number, because the mean of its divisors is an integer number (12875730).

Almost surely, 2^304542238 is an apocalyptic number.

304542238 is an abundant number, since it is smaller than the sum of its proper divisors (313492802).

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

304542238 is a wasteful number, since it uses less digits than its factorization.

304542238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13873 (or 13862 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 304542238 is about 17451.1385874962. The cubic root of 304542238 is about 672.7946225917.

The spelling of 304542238 in words is "three hundred four million, five hundred forty-two thousand, two hundred thirty-eight".