33240033 has 6 divisors (see below), whose sum is σ = 48013394. Its totient is φ = 22160016.

The previous prime is 33240019. The next prime is 33240041. The reversal of 33240033 is 33004233.

It can be written as a sum of positive squares in only one way, i.e., 32626944 + 613089 = 5712^2 + 783^2 .

It is not a de Polignac number, because 33240033 - 2⁴ = 33240017 is a prime.

It is a super-2 number, since 2×33240033² = 2209799587682178, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 33239988 and 33240015.

It is not an unprimeable number, because it can be changed into a prime (33240133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1846660 + ... + 1846677.

Almost surely, 2^33240033 is an apocalyptic number.

It is an amenable number.

33240033 is a deficient number, since it is larger than the sum of its proper divisors (14773361).

33240033 is a wasteful number, since it uses less digits than its factorization.

33240033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3693343 (or 3693340 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

The square root of 33240033 is about 5765.4169840524. The cubic root of 33240033 is about 321.5292460094.

Adding to 33240033 its reverse (33004233), we get a palindrome (66244266).

The spelling of 33240033 in words is "thirty-three million, two hundred forty thousand, thirty-three".