75428752 has 80 divisors (see below), whose sum is σ = 173238912. Its totient is φ = 31150080.

The previous prime is 75428747. The next prime is 75428827. The reversal of 75428752 is 25782457.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 575727 + ... + 575857.

Almost surely, 2^75428752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75428752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86619456).

75428752 is an abundant number, since it is smaller than the sum of its proper divisors (97810160).

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

75428752 is a wasteful number, since it uses less digits than its factorization.

75428752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 290 counting only the distinct ones).

The product of its digits is 156800, while the sum is 40.

The square root of 75428752 is about 8684.9727690995. The cubic root of 75428752 is about 422.5184138188.

The spelling of 75428752 in words is "seventy-five million, four hundred twenty-eight thousand, seven hundred fifty-two".