30132750 has 32 divisors (see below), whose sum is σ = 75213216. Its totient is φ = 8035200.

The previous prime is 30132749. The next prime is 30132757. The reversal of 30132750 is 5723103.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30132757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19339 + ... + 20838.

It is an arithmetic number, because the mean of its divisors is an integer number (2350413).

Almost surely, 2^30132750 is an apocalyptic number.

30132750 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30132750 is an abundant number, since it is smaller than the sum of its proper divisors (45080466).

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

30132750 is a wasteful number, since it uses less digits than its factorization.

30132750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40197 (or 40187 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 30132750 is about 5489.3305602778. The cubic root of 30132750 is about 311.1808930297.

Adding to 30132750 its reverse (5723103), we get a palindrome (35855853).

The spelling of 30132750 in words is "thirty million, one hundred thirty-two thousand, seven hundred fifty".