30612828 has 12 divisors (see below), whose sum is σ = 71429960. Its totient is φ = 10204272.

The previous prime is 30612811. The next prime is 30612833. The reversal of 30612828 is 82821603.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 30612795 and 30612804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1275523 + ... + 1275546.

Almost surely, 2^30612828 is an apocalyptic number.

It is an amenable number.

30612828 is an abundant number, since it is smaller than the sum of its proper divisors (40817132).

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

30612828 is a wasteful number, since it uses less digits than its factorization.

30612828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551076 (or 2551074 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 30612828 is about 5532.8860461788. The cubic root of 30612828 is about 312.8247819099.

The spelling of 30612828 in words is "thirty million, six hundred twelve thousand, eight hundred twenty-eight".