33440404 has 12 divisors (see below), whose sum is σ = 58561300. Its totient is φ = 16708608.

The previous prime is 33440401. The next prime is 33440419. The reversal of 33440404 is 40404433.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3168400 + 30272004 = 1780^2 + 5502^2 .

It is a super-2 number, since 2×33440404² = 2236521239366432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33440401) 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 3 ways as a sum of consecutive naturals, for example, 9202 + ... + 12310.

Almost surely, 2^33440404 is an apocalyptic number.

It is an amenable number.

33440404 is a deficient number, since it is larger than the sum of its proper divisors (25120896).

33440404 is a wasteful number, since it uses less digits than its factorization.

33440404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5802 (or 5800 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 33440404 is about 5782.7678493953. The cubic root of 33440404 is about 322.1740118826.

Adding to 33440404 its reverse (40404433), we get a palindrome (73844837).

The spelling of 33440404 in words is "thirty-three million, four hundred forty thousand, four hundred four".