30990658 has 8 divisors (see below), whose sum is σ = 46516428. Its totient is φ = 15485184.

The previous prime is 30990613. The next prime is 30990679. The reversal of 30990658 is 85609903.

It can be written as a sum of positive squares in 2 ways, for example, as 30063289 + 927369 = 5483^2 + 963^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30990658.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391 + ... + 7882.

Almost surely, 2^30990658 is an apocalyptic number.

30990658 is a deficient number, since it is larger than the sum of its proper divisors (15525770).

30990658 is a wasteful number, since it uses less digits than its factorization.

30990658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10148.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 30990658 is about 5566.9253632503. The cubic root of 30990658 is about 314.1065063935.

The spelling of 30990658 in words is "thirty million, nine hundred ninety thousand, six hundred fifty-eight".