30886672 has 10 divisors (see below), whose sum is σ = 59842958. Its totient is φ = 15443328.

The previous prime is 30886663. The next prime is 30886673. The reversal of 30886672 is 27668803.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18524416 + 12362256 = 4304^2 + 3516^2 .

It is a super-3 number, since 3×30886672³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (30886673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965193 + ... + 965224.

Almost surely, 2^30886672 is an apocalyptic number.

It is an amenable number.

30886672 is a deficient number, since it is larger than the sum of its proper divisors (28956286).

30886672 is a wasteful number, since it uses less digits than its factorization.

30886672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930425 (or 1930419 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 30886672 is about 5557.5778896926. The cubic root of 30886672 is about 313.7547952474.

The spelling of 30886672 in words is "thirty million, eight hundred eighty-six thousand, six hundred seventy-two".