30115472 has 20 divisors (see below), whose sum is σ = 58548336. Its totient is φ = 15006240.

The previous prime is 30115469. The next prime is 30115507. The reversal of 30115472 is 27451103.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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, 1847 + ... + 7977.

Almost surely, 2^30115472 is an apocalyptic number.

It is an amenable number.

30115472 is a deficient number, since it is larger than the sum of its proper divisors (28432864).

30115472 is a wasteful number, since it uses less digits than its factorization.

30115472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6446 (or 6440 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 30115472 is about 5487.7565543672. The cubic root of 30115472 is about 311.1214050260.

Adding to 30115472 its reverse (27451103), we get a palindrome (57566575).

The spelling of 30115472 in words is "thirty million, one hundred fifteen thousand, four hundred seventy-two".