30066750 has 192 divisors, whose sum is σ = 98122752. Its totient is φ = 6494400.

The previous prime is 30066749. The next prime is 30066763. The reversal of 30066750 is 5766003.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 362209 + ... + 362291.

It is an arithmetic number, because the mean of its divisors is an integer number (511056).

Almost surely, 2^30066750 is an apocalyptic number.

30066750 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 30066750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49061376).

30066750 is an abundant number, since it is smaller than the sum of its proper divisors (68056002).

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

30066750 is a wasteful number, since it uses less digits than its factorization.

30066750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 30066750 is about 5483.3156028082. The cubic root of 30066750 is about 310.9535329645.

The spelling of 30066750 in words is "thirty million, sixty-six thousand, seven hundred fifty".