30162872 has 32 divisors (see below), whose sum is σ = 57697920. Its totient is φ = 14780640.

The previous prime is 30162863. The next prime is 30162893. The reversal of 30162872 is 27826103.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142847 + ... + 143057.

It is an arithmetic number, because the mean of its divisors is an integer number (1803060).

Almost surely, 2^30162872 is an apocalyptic number.

It is an amenable number.

30162872 is a deficient number, since it is larger than the sum of its proper divisors (27535048).

30162872 is a wasteful number, since it uses less digits than its factorization.

30162872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 30162872 is about 5492.0735610514. The cubic root of 30162872 is about 311.2845484572.

Adding to 30162872 its reverse (27826103), we get a palindrome (57988975).

The spelling of 30162872 in words is "thirty million, one hundred sixty-two thousand, eight hundred seventy-two".