33020013 has 8 divisors (see below), whose sum is σ = 47413408. Its totient is φ = 20319984.

The previous prime is 33019997. The next prime is 33020089. The reversal of 33020013 is 31002033.

It is a happy number.

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

It is not a de Polignac number, because 33020013 - 2⁴ = 33019997 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 (33020413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423295 + ... + 423372.

It is an arithmetic number, because the mean of its divisors is an integer number (5926676).

Almost surely, 2^33020013 is an apocalyptic number.

It is an amenable number.

33020013 is a deficient number, since it is larger than the sum of its proper divisors (14393395).

33020013 is a wasteful number, since it uses less digits than its factorization.

33020013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846683.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 33020013 is about 5746.3042905854. The cubic root of 33020013 is about 320.8182606888.

Subtracting from 33020013 its sum of digits (12), we obtain a triangular number (33020001 = T₈₁₂₆).

Adding to 33020013 its reverse (31002033), we get a palindrome (64022046).

The spelling of 33020013 in words is "thirty-three million, twenty thousand, thirteen".