33440044 has 30 divisors (see below), whose sum is σ = 64484420. Its totient is φ = 15173400.

The previous prime is 33440039. The next prime is 33440047. The reversal of 33440044 is 44004433.

It is a happy number.

It is a super-2 number, since 2×33440044² = 2236473085443872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 33439997 and 33440024.

It is not an unprimeable number, because it can be changed into a prime (33440047) 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 9 ways as a sum of consecutive naturals, for example, 58279 + ... + 58849.

Almost surely, 2^33440044 is an apocalyptic number.

It is an amenable number.

33440044 is a deficient number, since it is larger than the sum of its proper divisors (31044376).

33440044 is an equidigital number, since it uses as much as digits as its factorization.

33440044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619 (or 584 counting only the distinct ones).

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

The square root of 33440044 is about 5782.7367223487. The cubic root of 33440044 is about 322.1728557656.

Adding to 33440044 its reverse (44004433), we get a palindrome (77444477).

The spelling of 33440044 in words is "thirty-three million, four hundred forty thousand, forty-four".