30982990 has 8 divisors (see below), whose sum is σ = 55769400. Its totient is φ = 12393192.

The previous prime is 30982969. The next prime is 30982997. The reversal of 30982990 is 9928903.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30982997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1549140 + ... + 1549159.

It is an arithmetic number, because the mean of its divisors is an integer number (6971175).

Almost surely, 2^30982990 is an apocalyptic number.

30982990 is a deficient number, since it is larger than the sum of its proper divisors (24786410).

30982990 is a wasteful number, since it uses less digits than its factorization.

30982990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098306.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 30982990 is about 5566.2366101344. The cubic root of 30982990 is about 314.0805978614.

The spelling of 30982990 in words is "thirty million, nine hundred eighty-two thousand, nine hundred ninety".