30630834 has 48 divisors (see below), whose sum is σ = 71914752. Its totient is φ = 9366624.

The previous prime is 30630829. The next prime is 30630841. The reversal of 30630834 is 43803603.

It is a junction number, because it is equal to n+sod(n) for n = 30630798 and 30630807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51889 + ... + 52475.

It is an arithmetic number, because the mean of its divisors is an integer number (1498224).

Almost surely, 2^30630834 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30630834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35957376).

30630834 is an abundant number, since it is smaller than the sum of its proper divisors (41283918).

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

30630834 is a wasteful number, since it uses less digits than its factorization.

30630834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 30630834 is about 5534.5129867044. The cubic root of 30630834 is about 312.8861028156.

The spelling of 30630834 in words is "thirty million, six hundred thirty thousand, eight hundred thirty-four".