30683628 has 18 divisors (see below), whose sum is σ = 77561484. Its totient is φ = 10227864.

The previous prime is 30683617. The next prime is 30683629. The reversal of 30683628 is 82638603.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 852323 = 30683628 / (3 + 0 + 6 + 8 + 3 + 6 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 30683592 and 30683601.

It is not an unprimeable number, because it can be changed into a prime (30683629) 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 5 ways as a sum of consecutive naturals, for example, 426126 + ... + 426197.

Almost surely, 2^30683628 is an apocalyptic number.

It is an amenable number.

30683628 is an abundant number, since it is smaller than the sum of its proper divisors (46877856).

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

30683628 is a wasteful number, since it uses less digits than its factorization.

30683628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852333 (or 852328 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 30683628 is about 5539.2804586878. The cubic root of 30683628 is about 313.0657586899.

The spelling of 30683628 in words is "thirty million, six hundred eighty-three thousand, six hundred twenty-eight".