30680444 has 12 divisors (see below), whose sum is σ = 56849184. Its totient is φ = 14437824.

The previous prime is 30680417. The next prime is 30680471. The reversal of 30680444 is 44408603.

It is an interprime number because it is at equal distance from previous prime (30680417) and next prime (30680471).

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, 225524 + ... + 225659.

It is an arithmetic number, because the mean of its divisors is an integer number (4737432).

Almost surely, 2^30680444 is an apocalyptic number.

30680444 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

30680444 is a deficient number, since it is larger than the sum of its proper divisors (26168740).

30680444 is a wasteful number, since it uses less digits than its factorization.

30680444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451204 (or 451202 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 30680444 is about 5538.9930492825. The cubic root of 30680444 is about 313.0549295071.

The spelling of 30680444 in words is "thirty million, six hundred eighty thousand, four hundred forty-four".