30272112 has 120 divisors (see below), whose sum is σ = 92709344. Its totient is φ = 9165312.

The previous prime is 30272093. The next prime is 30272113. The reversal of 30272112 is 21127203.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30272113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192738 + ... + 192894.

Almost surely, 2^30272112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30272112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46354672).

30272112 is an abundant number, since it is smaller than the sum of its proper divisors (62437232).

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

30272112 is a wasteful number, since it uses less digits than its factorization.

30272112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 30272112 is about 5502.0098146041. The cubic root of 30272112 is about 311.6598857832.

Adding to 30272112 its reverse (21127203), we get a palindrome (51399315).

The spelling of 30272112 in words is "thirty million, two hundred seventy-two thousand, one hundred twelve".