30290986 has 16 divisors (see below), whose sum is σ = 49665888. Its totient is φ = 13741200.

The previous prime is 30290969. The next prime is 30290989. The reversal of 30290986 is 68909203.

It is not an unprimeable number, because it can be changed into a prime (30290989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13501 + ... + 15583.

It is an arithmetic number, because the mean of its divisors is an integer number (3104118).

Almost surely, 2^30290986 is an apocalyptic number.

30290986 is a deficient number, since it is larger than the sum of its proper divisors (19374902).

30290986 is a wasteful number, since it uses less digits than its factorization.

30290986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 30290986 is about 5503.7247387565. The cubic root of 30290986 is about 311.7246433684.

The spelling of 30290986 in words is "thirty million, two hundred ninety thousand, nine hundred eighty-six".