30634528 has 48 divisors (see below), whose sum is σ = 63685440. Its totient is φ = 14477056.

The previous prime is 30634507. The next prime is 30634543. The reversal of 30634528 is 82543603.

It is a self number, because there is not a number n which added to its sum of digits gives 30634528.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78558 + ... + 78946.

It is an arithmetic number, because the mean of its divisors is an integer number (1326780).

Almost surely, 2^30634528 is an apocalyptic number.

30634528 is the 2959-th centered heptagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30634528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31842720).

30634528 is an abundant number, since it is smaller than the sum of its proper divisors (33050912).

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

30634528 is a wasteful number, since it uses less digits than its factorization.

30634528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 30634528 is about 5534.8467006774. The cubic root of 30634528 is about 312.8986800638.

The spelling of 30634528 in words is "thirty million, six hundred thirty-four thousand, five hundred twenty-eight".