30682840 has 16 divisors (see below), whose sum is σ = 69036480. Its totient is φ = 12273120.

The previous prime is 30682837. The next prime is 30682843. The reversal of 30682840 is 4828603.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30682837) and next prime (30682843).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30682843) 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, 383496 + ... + 383575.

It is an arithmetic number, because the mean of its divisors is an integer number (4314780).

Almost surely, 2^30682840 is an apocalyptic number.

It is an amenable number.

30682840 is an abundant number, since it is smaller than the sum of its proper divisors (38353640).

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

30682840 is a wasteful number, since it uses less digits than its factorization.

30682840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767082 (or 767078 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 30682840 is about 5539.2093298593. The cubic root of 30682840 is about 313.0630786730.

The spelling of 30682840 in words is "thirty million, six hundred eighty-two thousand, eight hundred forty".