33225144 has 32 divisors (see below), whose sum is σ = 83253120. Its totient is φ = 11049696.

The previous prime is 33225139. The next prime is 33225161. The reversal of 33225144 is 44152233.

It is a super-2 number, since 2×33225144² = 2207820387641472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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, 11229 + ... + 13875.

It is an arithmetic number, because the mean of its divisors is an integer number (2601660).

Almost surely, 2^33225144 is an apocalyptic number.

It is an amenable number.

33225144 is an abundant number, since it is smaller than the sum of its proper divisors (50027976).

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

33225144 is a wasteful number, since it uses less digits than its factorization.

33225144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3179 (or 3175 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 33225144 is about 5764.1256058486. The cubic root of 33225144 is about 321.4812319787.

Adding to 33225144 its reverse (44152233), we get a palindrome (77377377).

The spelling of 33225144 in words is "thirty-three million, two hundred twenty-five thousand, one hundred forty-four".