302221420 has 12 divisors (see below), whose sum is σ = 634665024. Its totient is φ = 120888560.

The previous prime is 302221417. The next prime is 302221433. The reversal of 302221420 is 24122203.

302221420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 302221394 and 302221403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7555516 + ... + 7555555.

It is an arithmetic number, because the mean of its divisors is an integer number (52888752).

Almost surely, 2^302221420 is an apocalyptic number.

It is an amenable number.

302221420 is an abundant number, since it is smaller than the sum of its proper divisors (332443604).

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

302221420 is a wasteful number, since it uses less digits than its factorization.

302221420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15111080 (or 15111078 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 302221420 is about 17384.5166743283. The cubic root of 302221420 is about 671.0812125971.

Adding to 302221420 its reverse (24122203), we get a palindrome (326343623).

It can be divided in two parts, 3022 and 21420, that added together give a palindrome (24442).

The spelling of 302221420 in words is "three hundred two million, two hundred twenty-one thousand, four hundred twenty".