30227172 has 24 divisors (see below), whose sum is σ = 71862336. Its totient is φ = 9885408.

The previous prime is 30227149. The next prime is 30227191. The reversal of 30227172 is 27172203.

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, 23128 + ... + 24399.

It is an arithmetic number, because the mean of its divisors is an integer number (2994264).

Almost surely, 2^30227172 is an apocalyptic number.

It is an amenable number.

30227172 is an abundant number, since it is smaller than the sum of its proper divisors (41635164).

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

30227172 is a wasteful number, since it uses less digits than its factorization.

30227172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47587 (or 47585 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 30227172 is about 5497.9243356016. The cubic root of 30227172 is about 311.5055861010.

Adding to 30227172 its reverse (27172203), we get a palindrome (57399375).

The spelling of 30227172 in words is "thirty million, two hundred twenty-seven thousand, one hundred seventy-two".