30202220 has 24 divisors (see below), whose sum is σ = 66183264. Its totient is φ = 11555456.

The previous prime is 30202219. The next prime is 30202241. The reversal of 30202220 is 2220203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32369 + ... + 33288.

It is an arithmetic number, because the mean of its divisors is an integer number (2757636).

Almost surely, 2^30202220 is an apocalyptic number.

It is an amenable number.

30202220 is an abundant number, since it is smaller than the sum of its proper divisors (35981044).

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

30202220 is a wasteful number, since it uses less digits than its factorization.

30202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65689 (or 65687 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 30202220 is about 5495.6546470825. The cubic root of 30202220 is about 311.4198483735.

Adding to 30202220 its reverse (2220203), we get a palindrome (32422423).

The spelling of 30202220 in words is "thirty million, two hundred two thousand, two hundred twenty".