304978242 has 8 divisors (see below), whose sum is σ = 609956496. Its totient is φ = 101659412.

The previous prime is 304978211. The next prime is 304978243. The reversal of 304978242 is 242879403.

It is a sphenic number, since it is the product of 3 distinct primes.

304978242 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 304978242.

It is not an unprimeable number, because it can be changed into a prime (304978243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25414848 + ... + 25414859.

It is an arithmetic number, because the mean of its divisors is an integer number (76244562).

Almost surely, 2^304978242 is an apocalyptic number.

304978242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

304978242 is a wasteful number, since it uses less digits than its factorization.

304978242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50829712.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 304978242 is about 17463.6262557351. The cubic root of 304978242 is about 673.1155427926.

The spelling of 304978242 in words is "three hundred four million, nine hundred seventy-eight thousand, two hundred forty-two".