304897242 has 64 divisors (see below), whose sum is σ = 697898880. Its totient is φ = 88107264.

The previous prime is 304897231. The next prime is 304897259. The reversal of 304897242 is 242798403.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 304897242.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81873 + ... + 85515.

It is an arithmetic number, because the mean of its divisors is an integer number (10904670).

Almost surely, 2^304897242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304897242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348949440).

304897242 is an abundant number, since it is smaller than the sum of its proper divisors (393001638).

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

304897242 is a wasteful number, since it uses less digits than its factorization.

304897242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3727.

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

The square root of 304897242 is about 17461.3069957549. The cubic root of 304897242 is about 673.0559459874.

The spelling of 304897242 in words is "three hundred four million, eight hundred ninety-seven thousand, two hundred forty-two".