30109472 has 12 divisors (see below), whose sum is σ = 59278086. Its totient is φ = 15054720.

The previous prime is 30109451. The next prime is 30109477. The reversal of 30109472 is 27490103.

It can be written as a sum of positive squares in only one way, i.e., 19324816 + 10784656 = 4396^2 + 3284^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (30109477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470429 + ... + 470492.

Almost surely, 2^30109472 is an apocalyptic number.

30109472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30109472 is a deficient number, since it is larger than the sum of its proper divisors (29168614).

30109472 is an equidigital number, since it uses as much as digits as its factorization.

30109472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940931 (or 940923 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 30109472 is about 5487.2098556552. The cubic root of 30109472 is about 311.1007417557.

Adding to 30109472 its reverse (27490103), we get a palindrome (57599575).

The spelling of 30109472 in words is "thirty million, one hundred nine thousand, four hundred seventy-two".