75290328 has 48 divisors (see below), whose sum is σ = 204804600. Its totient is φ = 24986880.

The previous prime is 75290321. The next prime is 75290357. The reversal of 75290328 is 82309257.

It is a happy number.

It is a Cunningham number, because it is equal to 8677²-1.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 75290292 and 75290301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75290321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15183 + ... + 19521.

Almost surely, 2^75290328 is an apocalyptic number.

It is an amenable number.

75290328 is an abundant number, since it is smaller than the sum of its proper divisors (129514272).

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

75290328 is a wasteful number, since it uses less digits than its factorization.

75290328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4592 (or 4585 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 75290328 is about 8676.9999423764. Note that the first 4 decimals coincide. The cubic root of 75290328 is about 422.2597922658.

The spelling of 75290328 in words is "seventy-five million, two hundred ninety thousand, three hundred twenty-eight".