33042271 has 4 divisors (see below), whose sum is σ = 34985952. Its totient is φ = 31098592.

The previous prime is 33042263. The next prime is 33042277. The reversal of 33042271 is 17224033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17224033 = 23 ⋅748871.

It is a cyclic number.

It is not a de Polignac number, because 33042271 - 2³ = 33042263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33042277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 971815 + ... + 971848.

It is an arithmetic number, because the mean of its divisors is an integer number (8746488).

Almost surely, 2^33042271 is an apocalyptic number.

33042271 is a deficient number, since it is larger than the sum of its proper divisors (1943681).

33042271 is a wasteful number, since it uses less digits than its factorization.

33042271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943680.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 33042271 is about 5748.2406873756. The cubic root of 33042271 is about 320.8903298001.

The spelling of 33042271 in words is "thirty-three million, forty-two thousand, two hundred seventy-one".