30840706 has 8 divisors (see below), whose sum is σ = 49819644. Its totient is φ = 14234160.

The previous prime is 30840701. The next prime is 30840709. The reversal of 30840706 is 60704803.

It can be written as a sum of positive squares in 2 ways, for example, as 29757025 + 1083681 = 5455^2 + 1041^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×30840706³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (30840701) by changing a digit.

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, 593065 + ... + 593116.

Almost surely, 2^30840706 is an apocalyptic number.

30840706 is a deficient number, since it is larger than the sum of its proper divisors (18978938).

30840706 is a wasteful number, since it uses less digits than its factorization.

30840706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186196.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 30840706 is about 5553.4409153245. The cubic root of 30840706 is about 313.5990731374.

It can be divided in two parts, 308 and 40706, that added together give a palindrome (41014).

The spelling of 30840706 in words is "thirty million, eight hundred forty thousand, seven hundred six".