33040023 has 4 divisors (see below), whose sum is σ = 44053368. Its totient is φ = 22026680.

The previous prime is 33040009. The next prime is 33040057. The reversal of 33040023 is 32004033.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 33040023 - 2⁵ = 33039991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33039984 and 33040011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33040523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5506668 + ... + 5506673.

It is an arithmetic number, because the mean of its divisors is an integer number (11013342).

Almost surely, 2^33040023 is an apocalyptic number.

33040023 is a deficient number, since it is larger than the sum of its proper divisors (11013345).

33040023 is a wasteful number, since it uses less digits than its factorization.

33040023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11013344.

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 33040023 is about 5748.0451459605. The cubic root of 33040023 is about 320.8830524772.

Adding to 33040023 its reverse (32004033), we get a palindrome (65044056).

The spelling of 33040023 in words is "thirty-three million, forty thousand, twenty-three".