302130220 has 24 divisors (see below), whose sum is σ = 725112864. Its totient is φ = 103587456.

The previous prime is 302130217. The next prime is 302130223. The reversal of 302130220 is 22031203.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (302130217) and next prime (302130223).

It is a self number, because there is not a number n which added to its sum of digits gives 302130220.

It is not an unprimeable number, because it can be changed into a prime (302130223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1078897 + ... + 1079176.

It is an arithmetic number, because the mean of its divisors is an integer number (30213036).

Almost surely, 2^302130220 is an apocalyptic number.

It is an amenable number.

302130220 is an abundant number, since it is smaller than the sum of its proper divisors (422982644).

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

302130220 is a wasteful number, since it uses less digits than its factorization.

302130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158089 (or 2158087 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 302130220 is about 17381.8934526708. The cubic root of 302130220 is about 671.0137027518.

Adding to 302130220 its reverse (22031203), we get a palindrome (324161423).

The spelling of 302130220 in words is "three hundred two million, one hundred thirty thousand, two hundred twenty".