33438224 has 10 divisors (see below), whose sum is σ = 64786590. Its totient is φ = 16719104.

The previous prime is 33438221. The next prime is 33438239. The reversal of 33438224 is 42283433.

It can be written as a sum of positive squares in only one way, i.e., 17977600 + 15460624 = 4240^2 + 3932^2 .

It is a super-2 number, since 2×33438224² = 2236229648548352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33438221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1044929 + ... + 1044960.

It is an arithmetic number, because the mean of its divisors is an integer number (6478659).

Almost surely, 2^33438224 is an apocalyptic number.

It is an amenable number.

33438224 is a deficient number, since it is larger than the sum of its proper divisors (31348366).

33438224 is a wasteful number, since it uses less digits than its factorization.

33438224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089897 (or 2089891 counting only the distinct ones).

The product of its digits is 13824, while the sum is 29.

The square root of 33438224 is about 5782.5793552704. The cubic root of 33438224 is about 322.1670108248.

The spelling of 33438224 in words is "thirty-three million, four hundred thirty-eight thousand, two hundred twenty-four".