30111772 has 12 divisors (see below), whose sum is σ = 53817120. Its totient is φ = 14735456.

The previous prime is 30111769. The next prime is 30111779. The reversal of 30111772 is 27711103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30111779) 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 in 3 ways as a sum of consecutive naturals, for example, 79897 + ... + 80272.

It is an arithmetic number, because the mean of its divisors is an integer number (4484760).

Almost surely, 2^30111772 is an apocalyptic number.

It is an amenable number.

30111772 is a deficient number, since it is larger than the sum of its proper divisors (23705348).

30111772 is a wasteful number, since it uses less digits than its factorization.

30111772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160220 (or 160218 counting only the distinct ones).

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 30111772 is about 5487.4194299324. The cubic root of 30111772 is about 311.1086630004.

Adding to 30111772 its reverse (27711103), we get a palindrome (57822875).

The spelling of 30111772 in words is "thirty million, one hundred eleven thousand, seven hundred seventy-two".