30097288 has 16 divisors (see below), whose sum is σ = 60773580. Its totient is φ = 13891008.

The previous prime is 30097283. The next prime is 30097297. The reversal of 30097288 is 88279003.

It can be written as a sum of positive squares in 2 ways, for example, as 30008484 + 88804 = 5478^2 + 298^2 .

It is not an unprimeable number, because it can be changed into a prime (30097283) 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, 144595 + ... + 144802.

Almost surely, 2^30097288 is an apocalyptic number.

It is an amenable number.

30097288 is an abundant number, since it is smaller than the sum of its proper divisors (30676292).

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

30097288 is a wasteful number, since it uses less digits than its factorization.

30097288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289416 (or 289412 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 30097288 is about 5486.0995251636. The cubic root of 30097288 is about 311.0587730929.

The spelling of 30097288 in words is "thirty million, ninety-seven thousand, two hundred eighty-eight".