33061224 has 64 divisors (see below), whose sum is σ = 95639040. Its totient is φ = 9328320.

The previous prime is 33061213. The next prime is 33061229. The reversal of 33061224 is 42216033.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 33061224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33061229) 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, 12759 + ... + 15129.

It is an arithmetic number, because the mean of its divisors is an integer number (1494360).

Almost surely, 2^33061224 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 33061224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47819520).

33061224 is an abundant number, since it is smaller than the sum of its proper divisors (62577816).

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

33061224 is a wasteful number, since it uses less digits than its factorization.

33061224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470 (or 2466 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 33061224 is about 5749.8890424077. The cubic root of 33061224 is about 320.9516721530.

Adding to 33061224 its reverse (42216033), we get a palindrome (75277257).

The spelling of 33061224 in words is "thirty-three million, sixty-one thousand, two hundred twenty-four".