30680244 has 72 divisors (see below), whose sum is σ = 89206208. Its totient is φ = 8709120.

The previous prime is 30680233. The next prime is 30680249. The reversal of 30680244 is 44208603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30680249) 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 23 ways as a sum of consecutive naturals, for example, 52884 + ... + 53460.

Almost surely, 2^30680244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30680244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44603104).

30680244 is an abundant number, since it is smaller than the sum of its proper divisors (58525964).

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

30680244 is a wasteful number, since it uses less digits than its factorization.

30680244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 30680244 is about 5538.9749954301. The cubic root of 30680244 is about 313.0542492570.

Adding to 30680244 its reverse (44208603), we get a palindrome (74888847).

The spelling of 30680244 in words is "thirty million, six hundred eighty thousand, two hundred forty-four".