75030390 has 48 divisors (see below), whose sum is σ = 196406496. Its totient is φ = 19872000.

The previous prime is 75030343. The next prime is 75030407. The reversal of 75030390 is 9303057.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 10830 + ... + 16350.

It is an arithmetic number, because the mean of its divisors is an integer number (4091802).

Almost surely, 2^75030390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75030390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98203248).

75030390 is an abundant number, since it is smaller than the sum of its proper divisors (121376106).

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

75030390 is a wasteful number, since it uses less digits than its factorization.

75030390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5685 (or 5682 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 27.

The square root of 75030390 is about 8662.0084276108. The cubic root of 75030390 is about 421.7732847786.

The spelling of 75030390 in words is "seventy-five million, thirty thousand, three hundred ninety".