30752250 has 64 divisors (see below), whose sum is σ = 77590656. Its totient is φ = 8112000.

The previous prime is 30752237. The next prime is 30752273. The reversal of 30752250 is 5225703.

It is a self number, because there is not a number n which added to its sum of digits gives 30752250.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98094 + ... + 98406.

It is an arithmetic number, because the mean of its divisors is an integer number (1212354).

Almost surely, 2^30752250 is an apocalyptic number.

30752250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30752250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38795328).

30752250 is an abundant number, since it is smaller than the sum of its proper divisors (46838406).

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

30752250 is a wasteful number, since it uses less digits than its factorization.

30752250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 30752250 is about 5545.4711251615. The cubic root of 30752250 is about 313.2989688684.

Adding to 30752250 its reverse (5225703), we get a palindrome (35977953).

The spelling of 30752250 in words is "thirty million, seven hundred fifty-two thousand, two hundred fifty".