30739892 has 12 divisors (see below), whose sum is σ = 54156900. Its totient is φ = 15266496.

The previous prime is 30739871. The next prime is 30739909. The reversal of 30739892 is 29893703.

It can be written as a sum of positive squares in 2 ways, for example, as 9265936 + 21473956 = 3044^2 + 4634^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 25193 + ... + 26384.

It is an arithmetic number, because the mean of its divisors is an integer number (4513075).

Almost surely, 2^30739892 is an apocalyptic number.

It is an amenable number.

30739892 is a deficient number, since it is larger than the sum of its proper divisors (23417008).

30739892 is a wasteful number, since it uses less digits than its factorization.

30739892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51730 (or 51728 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 30739892 is about 5544.3567706272. The cubic root of 30739892 is about 313.2569961412.

The spelling of 30739892 in words is "thirty million, seven hundred thirty-nine thousand, eight hundred ninety-two".