75346728 has 16 divisors (see below), whose sum is σ = 188366880. Its totient is φ = 25115568.

The previous prime is 75346699. The next prime is 75346751. The reversal of 75346728 is 82764357.

It is a self number, because there is not a number n which added to its sum of digits gives 75346728.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1569700 + ... + 1569747.

It is an arithmetic number, because the mean of its divisors is an integer number (11772930).

Almost surely, 2^75346728 is an apocalyptic number.

It is an amenable number.

75346728 is an abundant number, since it is smaller than the sum of its proper divisors (113020152).

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

75346728 is a wasteful number, since it uses less digits than its factorization.

75346728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3139456 (or 3139452 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 75346728 is about 8680.2493051755. The cubic root of 75346728 is about 422.3652042475.

The spelling of 75346728 in words is "seventy-five million, three hundred forty-six thousand, seven hundred twenty-eight".