32750728 has 16 divisors (see below), whose sum is σ = 62714880. Its totient is φ = 16026768.

The previous prime is 32750719. The next prime is 32750743. The reversal of 32750728 is 82705723.

It is a super-2 number, since 2×32750728² = 2145220369059968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32750693 and 32750702.

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, 43176 + ... + 43927.

It is an arithmetic number, because the mean of its divisors is an integer number (3919680).

Almost surely, 2^32750728 is an apocalyptic number.

It is an amenable number.

32750728 is a deficient number, since it is larger than the sum of its proper divisors (29964152).

32750728 is a wasteful number, since it uses less digits than its factorization.

32750728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87156 (or 87152 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 32750728 is about 5722.8251764317. The cubic root of 32750728 is about 319.9437661602.

The spelling of 32750728 in words is "thirty-two million, seven hundred fifty thousand, seven hundred twenty-eight".