30986046 has 48 divisors (see below), whose sum is σ = 82633824. Its totient is φ = 8171712.

The previous prime is 30986027. The next prime is 30986047. The reversal of 30986046 is 64068903.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30986046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30986047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7821 + ... + 11096.

It is an arithmetic number, because the mean of its divisors is an integer number (1721538).

Almost surely, 2^30986046 is an apocalyptic number.

30986046 is an abundant number, since it is smaller than the sum of its proper divisors (51647778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30986046 is a wasteful number, since it uses less digits than its factorization.

30986046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18945 (or 18942 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 30986046 is about 5566.5111155912. The cubic root of 30986046 is about 314.0909239441.

The spelling of 30986046 in words is "thirty million, nine hundred eighty-six thousand, forty-six".