33040493 has 8 divisors (see below), whose sum is σ = 33398040. Its totient is φ = 32685120.

The previous prime is 33040481. The next prime is 33040507. The reversal of 33040493 is 39404033.

It can be written as a sum of positive squares in 4 ways, for example, as 299209 + 32741284 = 547^2 + 5722^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33040493 - 2⁶ = 33040429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33040393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60803 + ... + 61343.

It is an arithmetic number, because the mean of its divisors is an integer number (4174755).

Almost surely, 2^33040493 is an apocalyptic number.

It is an amenable number.

33040493 is a deficient number, since it is larger than the sum of its proper divisors (357547).

33040493 is a wasteful number, since it uses less digits than its factorization.

33040493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 33040493 is about 5748.0860292797. The cubic root of 33040493 is about 320.8845740088.

It can be divided in two parts, 33040 and 493, that added together give a palindrome (33533).

The spelling of 33040493 in words is "thirty-three million, forty thousand, four hundred ninety-three".