30301220 has 24 divisors (see below), whose sum is σ = 64713600. Its totient is φ = 11914592.

The previous prime is 30301199. The next prime is 30301241. The reversal of 30301220 is 2210303.

It is an interprime number because it is at equal distance from previous prime (30301199) and next prime (30301241).

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, 11660 + ... + 14019.

It is an arithmetic number, because the mean of its divisors is an integer number (2696400).

Almost surely, 2^30301220 is an apocalyptic number.

It is an amenable number.

30301220 is an abundant number, since it is smaller than the sum of its proper divisors (34412380).

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

30301220 is a wasteful number, since it uses less digits than its factorization.

30301220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25747 (or 25745 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 30301220 is about 5504.6543942377. The cubic root of 30301220 is about 311.7597454589.

Adding to 30301220 its reverse (2210303), we get a palindrome (32511523).

The spelling of 30301220 in words is "thirty million, three hundred one thousand, two hundred twenty".