30872132 has 12 divisors (see below), whose sum is σ = 54138000. Its totient is φ = 15404136.

The previous prime is 30872123. The next prime is 30872147. The reversal of 30872132 is 23127803.

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, 5738 + ... + 9729.

It is an arithmetic number, because the mean of its divisors is an integer number (4511500).

Almost surely, 2^30872132 is an apocalyptic number.

It is an amenable number.

30872132 is a deficient number, since it is larger than the sum of its proper divisors (23265868).

30872132 is a wasteful number, since it uses less digits than its factorization.

30872132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15970 (or 15968 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 30872132 is about 5556.2696118889. The cubic root of 30872132 is about 313.7055538274.

Adding to 30872132 its reverse (23127803), we get a palindrome (53999935).

The spelling of 30872132 in words is "thirty million, eight hundred seventy-two thousand, one hundred thirty-two".