30031772 has 12 divisors (see below), whose sum is σ = 52879176. Its totient is φ = 14923440.

The previous prime is 30031763. The next prime is 30031801. The reversal of 30031772 is 27713003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22379 + ... + 23682.

It is an arithmetic number, because the mean of its divisors is an integer number (4406598).

Almost surely, 2^30031772 is an apocalyptic number.

It is an amenable number.

30031772 is a deficient number, since it is larger than the sum of its proper divisors (22847404).

30031772 is a wasteful number, since it uses less digits than its factorization.

30031772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46228 (or 46226 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 30031772 is about 5480.1251810520. The cubic root of 30031772 is about 310.8329041068.

Adding to 30031772 its reverse (27713003), we get a palindrome (57744775).

It can be divided in two parts, 30031 and 772, that added together give a palindrome (30803).

The spelling of 30031772 in words is "thirty million, thirty-one thousand, seven hundred seventy-two".