33013224 has 32 divisors (see below), whose sum is σ = 91704000. Its totient is φ = 11004336.

The previous prime is 33013217. The next prime is 33013247. The reversal of 33013224 is 42231033.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 33013197 and 33013206.

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, 76204 + ... + 76635.

It is an arithmetic number, because the mean of its divisors is an integer number (2865750).

Almost surely, 2^33013224 is an apocalyptic number.

It is an amenable number.

33013224 is an abundant number, since it is smaller than the sum of its proper divisors (58690776).

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

33013224 is a wasteful number, since it uses less digits than its factorization.

33013224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152854 (or 152844 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 33013224 is about 5745.7135327129. The cubic root of 33013224 is about 320.7962721606.

Adding to 33013224 its reverse (42231033), we get a palindrome (75244257).

The spelling of 33013224 in words is "thirty-three million, thirteen thousand, two hundred twenty-four".