30668830390 has 16 divisors (see below), whose sum is σ = 60222430800. Its totient is φ = 11152301920.

The previous prime is 30668830369. The next prime is 30668830391. The reversal of 30668830390 is 9303886603.

It is a self number, because there is not a number n which added to its sum of digits gives 30668830390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30668830391) 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, 139403665 + ... + 139403884.

It is an arithmetic number, because the mean of its divisors is an integer number (3763901925).

Almost surely, 2^30668830390 is an apocalyptic number.

30668830390 is a deficient number, since it is larger than the sum of its proper divisors (29553600410).

30668830390 is a wasteful number, since it uses less digits than its factorization.

30668830390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278807567.

The product of its (nonzero) digits is 559872, while the sum is 46.

The spelling of 30668830390 in words is "thirty billion, six hundred sixty-eight million, eight hundred thirty thousand, three hundred ninety".