33168028 has 12 divisors (see below), whose sum is σ = 58173192. Its totient is φ = 16547120.

The previous prime is 33168013. The next prime is 33168043. The reversal of 33168028 is 82086133.

It is an interprime number because it is at equal distance from previous prime (33168013) and next prime (33168043).

It is a super-2 number, since 2×33168028² = 2200236162817568, 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, 7150 + ... + 10837.

It is an arithmetic number, because the mean of its divisors is an integer number (4847766).

Almost surely, 2^33168028 is an apocalyptic number.

It is an amenable number.

33168028 is a deficient number, since it is larger than the sum of its proper divisors (25005164).

33168028 is a wasteful number, since it uses less digits than its factorization.

33168028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18452 (or 18450 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 33168028 is about 5759.1690372831. The cubic root of 33168028 is about 321.2969111951.

The spelling of 33168028 in words is "thirty-three million, one hundred sixty-eight thousand, twenty-eight".