30689382 has 16 divisors (see below), whose sum is σ = 61689600. Its totient is φ = 10177992.

The previous prime is 30689363. The next prime is 30689387. The reversal of 30689382 is 28398603.

It is a self number, because there is not a number n which added to its sum of digits gives 30689382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30689387) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11658 + ... + 14045.

It is an arithmetic number, because the mean of its divisors is an integer number (3855600).

Almost surely, 2^30689382 is an apocalyptic number.

30689382 is an abundant number, since it is smaller than the sum of its proper divisors (31000218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30689382 is a wasteful number, since it uses less digits than its factorization.

30689382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25907.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 30689382 is about 5539.7998158778. The cubic root of 30689382 is about 313.0853268647.

The spelling of 30689382 in words is "thirty million, six hundred eighty-nine thousand, three hundred eighty-two".