302242220 has 96 divisors (see below), whose sum is σ = 743178240. Its totient is φ = 101122560.

The previous prime is 302242217. The next prime is 302242231. The reversal of 302242220 is 22242203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1582325 + ... + 1582515.

It is an arithmetic number, because the mean of its divisors is an integer number (7741440).

Almost surely, 2^302242220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 302242220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371589120).

302242220 is an abundant number, since it is smaller than the sum of its proper divisors (440936020).

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

302242220 is a wasteful number, since it uses less digits than its factorization.

302242220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 302242220 is about 17385.1148975208. The cubic root of 302242220 is about 671.0966076773.

Subtracting from 302242220 its sum of digits (17), we obtain a palindrome (302242203).

Adding to 302242220 its reverse (22242203), we get a palindrome (324484423).

The spelling of 302242220 in words is "three hundred two million, two hundred forty-two thousand, two hundred twenty".