33243144 has 32 divisors (see below), whose sum is σ = 90663840. Its totient is φ = 10073600.

The previous prime is 33243097. The next prime is 33243157. The reversal of 33243144 is 44134233.

It is a super-2 number, since 2×33243144² = 2210213246009472, which contains 22 as substring.

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

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62697 + ... + 63224.

It is an arithmetic number, because the mean of its divisors is an integer number (2833245).

Almost surely, 2^33243144 is an apocalyptic number.

It is an amenable number.

33243144 is an abundant number, since it is smaller than the sum of its proper divisors (57420696).

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

33243144 is a wasteful number, since it uses less digits than its factorization.

33243144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125941 (or 125937 counting only the distinct ones).

The product of its digits is 3456, while the sum is 24.

The square root of 33243144 is about 5765.6867760918. The cubic root of 33243144 is about 321.5392765478.

Adding to 33243144 its reverse (44134233), we get a palindrome (77377377).

The spelling of 33243144 in words is "thirty-three million, two hundred forty-three thousand, one hundred forty-four".