33423033 has 32 divisors (see below), whose sum is σ = 54000640. Its totient is φ = 17962560.

The previous prime is 33423029. The next prime is 33423041. The reversal of 33423033 is 33032433.

It is not a de Polignac number, because 33423033 - 2² = 33423029 is a prime.

It is a super-2 number, since 2×33423033² = 2234198269838178, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33423023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83991 + ... + 84387.

It is an arithmetic number, because the mean of its divisors is an integer number (1687520).

Almost surely, 2^33423033 is an apocalyptic number.

It is an amenable number.

33423033 is a deficient number, since it is larger than the sum of its proper divisors (20577607).

33423033 is a wasteful number, since it uses less digits than its factorization.

33423033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637.

The product of its (nonzero) digits is 1944, while the sum is 21.

The square root of 33423033 is about 5781.2656918706. The cubic root of 33423033 is about 322.1182165630.

Adding to 33423033 its reverse (33032433), we get a palindrome (66455466).

It can be divided in two parts, 3 and 3423033, that added together give a triangular number (3423036 = T₂₆₁₆).

The spelling of 33423033 in words is "thirty-three million, four hundred twenty-three thousand, thirty-three".