33875728 has 10 divisors (see below), whose sum is σ = 65634254. Its totient is φ = 16937856.

The previous prime is 33875719. The next prime is 33875729. The reversal of 33875728 is 82757833.

It can be written as a sum of positive squares in only one way, i.e., 20684304 + 13191424 = 4548^2 + 3632^2 .

It is a super-2 number, since 2×33875728² = 2295129895059968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33875729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058601 + ... + 1058632.

Almost surely, 2^33875728 is an apocalyptic number.

It is an amenable number.

33875728 is a deficient number, since it is larger than the sum of its proper divisors (31758526).

33875728 is a wasteful number, since it uses less digits than its factorization.

33875728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117241 (or 2117235 counting only the distinct ones).

The product of its digits is 282240, while the sum is 43.

The square root of 33875728 is about 5820.2859036305. The cubic root of 33875728 is about 323.5659992095.

The spelling of 33875728 in words is "thirty-three million, eight hundred seventy-five thousand, seven hundred twenty-eight".