30115232 has 24 divisors (see below), whose sum is σ = 67759776. Its totient is φ = 12906432.

The previous prime is 30115199. The next prime is 30115237. The reversal of 30115232 is 23251103.

It is a self number, because there is not a number n which added to its sum of digits gives 30115232.

It is not an unprimeable number, because it can be changed into a prime (30115237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66998 + ... + 67445.

It is an arithmetic number, because the mean of its divisors is an integer number (2823324).

Almost surely, 2^30115232 is an apocalyptic number.

30115232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30115232 is an abundant number, since it is smaller than the sum of its proper divisors (37644544).

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

30115232 is a wasteful number, since it uses less digits than its factorization.

30115232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134460 (or 134452 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 30115232 is about 5487.7346874644. The cubic root of 30115232 is about 311.1205785479.

Adding to 30115232 its reverse (23251103), we get a palindrome (53366335).

The spelling of 30115232 in words is "thirty million, one hundred fifteen thousand, two hundred thirty-two".