30682642 has 4 divisors (see below), whose sum is σ = 46023966. Its totient is φ = 15341320.

The previous prime is 30682627. The next prime is 30682649. The reversal of 30682642 is 24628603.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26718561 + 3964081 = 5169^2 + 1991^2 .

It is not an unprimeable number, because it can be changed into a prime (30682649) 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 as a sum of consecutive naturals, namely, 7670659 + ... + 7670662.

Almost surely, 2^30682642 is an apocalyptic number.

30682642 is a deficient number, since it is larger than the sum of its proper divisors (15341324).

30682642 is a wasteful number, since it uses less digits than its factorization.

30682642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15341323.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 30682642 is about 5539.1914572436. The cubic root of 30682642 is about 313.0624052605.

The spelling of 30682642 in words is "thirty million, six hundred eighty-two thousand, six hundred forty-two".