33416728 has 16 divisors (see below), whose sum is σ = 62717760. Its totient is φ = 16692000.

The previous prime is 33416717. The next prime is 33416743. The reversal of 33416728 is 82761433.

It is a happy number.

It is a super-2 number, since 2×33416728² = 2233355420451968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33416693 and 33416702.

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, 14538 + ... + 16678.

It is an arithmetic number, because the mean of its divisors is an integer number (3919860).

Almost surely, 2^33416728 is an apocalyptic number.

It is an amenable number.

33416728 is a deficient number, since it is larger than the sum of its proper divisors (29301032).

33416728 is a wasteful number, since it uses less digits than its factorization.

33416728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4098 (or 4094 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 33416728 is about 5780.7203703345. The cubic root of 33416728 is about 322.0979602418.

The spelling of 33416728 in words is "thirty-three million, four hundred sixteen thousand, seven hundred twenty-eight".