33276728 has 16 divisors (see below), whose sum is σ = 62584080. Its totient is φ = 16587648.

The previous prime is 33276713. The next prime is 33276731. The reversal of 33276728 is 82767233.

It is a super-2 number, since 2×33276728² = 2214681252771968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33276691 and 33276700.

It is a congruent number.

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, 3476 + ... + 8867.

It is an arithmetic number, because the mean of its divisors is an integer number (3911505).

Almost surely, 2^33276728 is an apocalyptic number.

It is an amenable number.

33276728 is a deficient number, since it is larger than the sum of its proper divisors (29307352).

33276728 is a wasteful number, since it uses less digits than its factorization.

33276728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12686 (or 12682 counting only the distinct ones).

The product of its digits is 84672, while the sum is 38.

The square root of 33276728 is about 5768.5984432963. The cubic root of 33276728 is about 321.6475188235.

The spelling of 33276728 in words is "thirty-three million, two hundred seventy-six thousand, seven hundred twenty-eight".