33040313 has 4 divisors (see below), whose sum is σ = 33533520. Its totient is φ = 32547108.

The previous prime is 33040307. The next prime is 33040321. The reversal of 33040313 is 31304033.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31304033 = 41 ⋅763513.

It is a cyclic number.

It is not a de Polignac number, because 33040313 - 2⁸ = 33040057 is a prime.

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 = 33040291 and 33040300.

It is not an unprimeable number, because it can be changed into a prime (33040393) 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, 246503 + ... + 246636.

It is an arithmetic number, because the mean of its divisors is an integer number (8383380).

Almost surely, 2^33040313 is an apocalyptic number.

It is an amenable number.

33040313 is a deficient number, since it is larger than the sum of its proper divisors (493207).

33040313 is an equidigital number, since it uses as much as digits as its factorization.

33040313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493206.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 33040313 is about 5748.0703718726. The cubic root of 33040313 is about 320.8839912963.

Adding to 33040313 its reverse (31304033), we get a palindrome (64344346).

The spelling of 33040313 in words is "thirty-three million, forty thousand, three hundred thirteen".