33140433 has 4 divisors (see below), whose sum is σ = 44187248. Its totient is φ = 22093620.

The previous prime is 33140413. The next prime is 33140441. The reversal of 33140433 is 33404133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 33140433 - 2⁹ = 33139921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33140413) 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, 5523403 + ... + 5523408.

It is an arithmetic number, because the mean of its divisors is an integer number (11046812).

Almost surely, 2^33140433 is an apocalyptic number.

It is an amenable number.

33140433 is a deficient number, since it is larger than the sum of its proper divisors (11046815).

33140433 is a wasteful number, since it uses less digits than its factorization.

33140433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11046814.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 33140433 is about 5756.7727938490. The cubic root of 33140433 is about 321.2077827104.

Adding to 33140433 its reverse (33404133), we get a palindrome (66544566).

The spelling of 33140433 in words is "thirty-three million, one hundred forty thousand, four hundred thirty-three".