33240043 has 4 divisors (see below), whose sum is σ = 33479320. Its totient is φ = 33000768.

The previous prime is 33240041. The next prime is 33240079. The reversal of 33240043 is 34004233.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34004233 = 17 ⋅2000249.

It is a cyclic number.

It is not a de Polignac number, because 33240043 - 2¹ = 33240041 is a prime.

It is a super-2 number, since 2×33240043² = 2209800917283698, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33240043.

It is not an unprimeable number, because it can be changed into a prime (33240041) 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, 119430 + ... + 119707.

It is an arithmetic number, because the mean of its divisors is an integer number (8369830).

Almost surely, 2^33240043 is an apocalyptic number.

33240043 is a deficient number, since it is larger than the sum of its proper divisors (239277).

33240043 is a wasteful number, since it uses less digits than its factorization.

33240043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239276.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 33240043 is about 5765.4178512923. The cubic root of 33240043 is about 321.5292782526.

Adding to 33240043 its reverse (34004233), we get a palindrome (67244276).

The spelling of 33240043 in words is "thirty-three million, two hundred forty thousand, forty-three".