33728168 has 16 divisors (see below), whose sum is σ = 64711680. Its totient is φ = 16471728.

The previous prime is 33728137. The next prime is 33728171. The reversal of 33728168 is 86182733.

It is a happy number.

It is a super-2 number, since 2×33728168² = 2275178633272448, which contains 22 as substring.

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, 48680 + ... + 49367.

It is an arithmetic number, because the mean of its divisors is an integer number (4044480).

Almost surely, 2^33728168 is an apocalyptic number.

It is an amenable number.

33728168 is a deficient number, since it is larger than the sum of its proper divisors (30983512).

33728168 is a wasteful number, since it uses less digits than its factorization.

33728168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98096 (or 98092 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 33728168 is about 5807.5957159568. The cubic root of 33728168 is about 323.0955060769.

The spelling of 33728168 in words is "thirty-three million, seven hundred twenty-eight thousand, one hundred sixty-eight".