30290528 has 12 divisors (see below), whose sum is σ = 59634540. Its totient is φ = 15145248.

The previous prime is 30290521. The next prime is 30290537. The reversal of 30290528 is 82509203.

It is a self number, because there is not a number n which added to its sum of digits gives 30290528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30290521) by changing a digit.

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 as a sum of consecutive naturals, namely, 473258 + ... + 473321.

It is an arithmetic number, because the mean of its divisors is an integer number (4969545).

Almost surely, 2^30290528 is an apocalyptic number.

It is an amenable number.

30290528 is a deficient number, since it is larger than the sum of its proper divisors (29344012).

30290528 is an equidigital number, since it uses as much as digits as its factorization.

30290528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946589 (or 946581 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 30290528 is about 5503.6831304137. The cubic root of 30290528 is about 311.7230722673.

The spelling of 30290528 in words is "thirty million, two hundred ninety thousand, five hundred twenty-eight".