30288772 has 12 divisors (see below), whose sum is σ = 53410896. Its totient is φ = 15028520.

The previous prime is 30288763. The next prime is 30288773. The reversal of 30288772 is 27788203.

It is not an unprimeable number, because it can be changed into a prime (30288773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28378 + ... + 29425.

It is an arithmetic number, because the mean of its divisors is an integer number (4450908).

Almost surely, 2^30288772 is an apocalyptic number.

It is an amenable number.

30288772 is a deficient number, since it is larger than the sum of its proper divisors (23122124).

30288772 is a wasteful number, since it uses less digits than its factorization.

30288772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57938 (or 57936 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 30288772 is about 5503.5235985685. The cubic root of 30288772 is about 311.7170484228.

The spelling of 30288772 in words is "thirty million, two hundred eighty-eight thousand, seven hundred seventy-two".