30328500 has 48 divisors (see below), whose sum is σ = 88320960. Its totient is φ = 8087200.

The previous prime is 30328483. The next prime is 30328523. The reversal of 30328500 is 582303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8610 + ... + 11609.

It is an arithmetic number, because the mean of its divisors is an integer number (1840020).

Almost surely, 2^30328500 is an apocalyptic number.

30328500 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30328500 is an abundant number, since it is smaller than the sum of its proper divisors (57992460).

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

30328500 is a wasteful number, since it uses less digits than its factorization.

30328500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20241 (or 20229 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 30328500 is about 5507.1317398443. The cubic root of 30328500 is about 311.8532758498.

The spelling of 30328500 in words is "thirty million, three hundred twenty-eight thousand, five hundred".