33768172 has 6 divisors (see below), whose sum is σ = 59094308. Its totient is φ = 16884084.

The previous prime is 33768139. The next prime is 33768173. The reversal of 33768172 is 27186733.

It is a super-2 number, since 2×33768172² = 2280578880443168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33768173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4221018 + ... + 4221025.

Almost surely, 2^33768172 is an apocalyptic number.

It is an amenable number.

33768172 is a deficient number, since it is larger than the sum of its proper divisors (25326136).

33768172 is a wasteful number, since it uses less digits than its factorization.

33768172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8442047 (or 8442045 counting only the distinct ones).

The product of its digits is 42336, while the sum is 37.

The square root of 33768172 is about 5811.0388055837. The cubic root of 33768172 is about 323.2231936718.

The spelling of 33768172 in words is "thirty-three million, seven hundred sixty-eight thousand, one hundred seventy-two".