304221042 has 64 divisors (see below), whose sum is σ = 701521920. Its totient is φ = 97621200.

The previous prime is 304221031. The next prime is 304221089. The reversal of 304221042 is 240122403.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 439917 + ... + 440607.

It is an arithmetic number, because the mean of its divisors is an integer number (10961280).

Almost surely, 2^304221042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304221042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350760960).

304221042 is an abundant number, since it is smaller than the sum of its proper divisors (397300878).

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

304221042 is a wasteful number, since it uses less digits than its factorization.

304221042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996 (or 990 counting only the distinct ones).

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

The square root of 304221042 is about 17441.9334364055. The cubic root of 304221042 is about 672.5580106856.

Adding to 304221042 its reverse (240122403), we get a palindrome (544343445).

The spelling of 304221042 in words is "three hundred four million, two hundred twenty-one thousand, forty-two".