30221230 has 64 divisors (see below), whose sum is σ = 61746048. Its totient is φ = 10575360.

The previous prime is 30221209. The next prime is 30221239. The reversal of 30221230 is 3212203.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 30221230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 293359 + ... + 293461.

It is an arithmetic number, because the mean of its divisors is an integer number (964782).

Almost surely, 2^30221230 is an apocalyptic number.

30221230 is an abundant number, since it is smaller than the sum of its proper divisors (31524818).

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

30221230 is a wasteful number, since it uses less digits than its factorization.

30221230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221.

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

The square root of 30221230 is about 5497.3839232857. The cubic root of 30221230 is about 311.4851730380.

Adding to 30221230 its reverse (3212203), we get a palindrome (33433433).

The spelling of 30221230 in words is "thirty million, two hundred twenty-one thousand, two hundred thirty".