30942886 has 24 divisors (see below), whose sum is σ = 51452280. Its totient is φ = 13942656.

The previous prime is 30942883. The next prime is 30942893. The reversal of 30942886 is 68824903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30942881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13470 + ... + 15598.

It is an arithmetic number, because the mean of its divisors is an integer number (2143845).

Almost surely, 2^30942886 is an apocalyptic number.

30942886 is a deficient number, since it is larger than the sum of its proper divisors (20509394).

30942886 is a wasteful number, since it uses less digits than its factorization.

30942886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200 (or 2187 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 30942886 is about 5562.6330096457. The cubic root of 30942886 is about 313.9450253331.

The spelling of 30942886 in words is "thirty million, nine hundred forty-two thousand, eight hundred eighty-six".