33441040 has 80 divisors (see below), whose sum is σ = 83780352. Its totient is φ = 12367872.

The previous prime is 33441029. The next prime is 33441043. The reversal of 33441040 is 4014433.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×33441040² = 2236606312563200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33440999 and 33441017.

It is not an unprimeable number, because it can be changed into a prime (33441043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90937 + ... + 91303.

Almost surely, 2^33441040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33441040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41890176).

33441040 is an abundant number, since it is smaller than the sum of its proper divisors (50339312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33441040 is a wasteful number, since it uses less digits than its factorization.

33441040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 33441040 is about 5782.8228401015. The cubic root of 33441040 is about 322.1760543358.

Adding to 33441040 its reverse (4014433), we get a palindrome (37455473).

The spelling of 33441040 in words is "thirty-three million, four hundred forty-one thousand, forty".