33221984 has 12 divisors (see below), whose sum is σ = 65405844. Its totient is φ = 16610976.

The previous prime is 33221983. The next prime is 33221999. The reversal of 33221984 is 48912233.

It is a happy number.

It is a super-3 number, since 3×33221984³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 1038187 = 33221984 / (3 + 3 + 2 + 2 + 1 + 9 + 8 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 33221984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33221983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519062 + ... + 519125.

It is an arithmetic number, because the mean of its divisors is an integer number (5450487).

Almost surely, 2^33221984 is an apocalyptic number.

It is an amenable number.

33221984 is a deficient number, since it is larger than the sum of its proper divisors (32183860).

33221984 is a wasteful number, since it uses less digits than its factorization.

33221984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038197 (or 1038189 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 33221984 is about 5763.8514901062. The cubic root of 33221984 is about 321.4710397690.

The spelling of 33221984 in words is "thirty-three million, two hundred twenty-one thousand, nine hundred eighty-four".