30990284 has 12 divisors (see below), whose sum is σ = 58404864. Its totient is φ = 14303184.

The previous prime is 30990283. The next prime is 30990307. The reversal of 30990284 is 48209903.

It is not an unprimeable number, because it can be changed into a prime (30990283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297932 + ... + 298035.

It is an arithmetic number, because the mean of its divisors is an integer number (4867072).

Almost surely, 2^30990284 is an apocalyptic number.

It is an amenable number.

30990284 is a deficient number, since it is larger than the sum of its proper divisors (27414580).

30990284 is a wasteful number, since it uses less digits than its factorization.

30990284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595984 (or 595982 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 30990284 is about 5566.8917718957. The cubic root of 30990284 is about 314.1052428266.

The spelling of 30990284 in words is "thirty million, nine hundred ninety thousand, two hundred eighty-four".