304122042 has 48 divisors (see below), whose sum is σ = 757066752. Its totient is φ = 86430240.

The previous prime is 304122041. The next prime is 304122047. The reversal of 304122042 is 240221403.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (304122041) 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, 17748 + ... + 30384.

It is an arithmetic number, because the mean of its divisors is an integer number (15772224).

Almost surely, 2^304122042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304122042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378533376).

304122042 is an abundant number, since it is smaller than the sum of its proper divisors (452944710).

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

304122042 is a wasteful number, since it uses less digits than its factorization.

304122042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12843 (or 12840 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 304122042 is about 17439.0952173557. The cubic root of 304122042 is about 672.4850478749.

Adding to 304122042 its reverse (240221403), we get a palindrome (544343445).

The spelling of 304122042 in words is "three hundred four million, one hundred twenty-two thousand, forty-two".