30680912 has 10 divisors (see below), whose sum is σ = 59444298. Its totient is φ = 15340448.

The previous prime is 30680899. The next prime is 30680921. The reversal of 30680912 is 21908603.

It can be written as a sum of positive squares in only one way, i.e., 26584336 + 4096576 = 5156^2 + 2024^2 .

It is a super-2 number, since 2×30680912² = 1882636722303488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 958763 + ... + 958794.

Almost surely, 2^30680912 is an apocalyptic number.

It is an amenable number.

30680912 is a deficient number, since it is larger than the sum of its proper divisors (28763386).

30680912 is a wasteful number, since it uses less digits than its factorization.

30680912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917565 (or 1917559 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 30680912 is about 5539.0352950672. The cubic root of 30680912 is about 313.0565212807.

It can be divided in two parts, 306 and 80912, that added together give a palindrome (81218).

The spelling of 30680912 in words is "thirty million, six hundred eighty thousand, nine hundred twelve".