33530224 has 40 divisors (see below), whose sum is σ = 79960160. Its totient is φ = 13264128.

The previous prime is 33530183. The next prime is 33530249. The reversal of 33530224 is 42203533.

It is a super-2 number, since 2×33530224² = 2248551842980352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33530195 and 33530204.

It is a congruent number.

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, 10059 + ... + 12970.

It is an arithmetic number, because the mean of its divisors is an integer number (1999004).

Almost surely, 2^33530224 is an apocalyptic number.

It is an amenable number.

33530224 is an abundant number, since it is smaller than the sum of its proper divisors (46429936).

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

33530224 is a wasteful number, since it uses less digits than its factorization.

33530224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23057 (or 23051 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 33530224 is about 5790.5288186831. The cubic root of 33530224 is about 322.4622041719.

Adding to 33530224 its reverse (42203533), we get a palindrome (75733757).

The spelling of 33530224 in words is "thirty-three million, five hundred thirty thousand, two hundred twenty-four".