33222464 has 56 divisors (see below), whose sum is σ = 73737216. Its totient is φ = 14720000.

The previous prime is 33222463. The next prime is 33222473. The reversal of 33222464 is 46422233.

It is a super-2 number, since 2×33222464² = 2207464228462592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33222463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28289 + ... + 29439.

It is an arithmetic number, because the mean of its divisors is an integer number (1316736).

Almost surely, 2^33222464 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 33222464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36868608).

33222464 is an abundant number, since it is smaller than the sum of its proper divisors (40514752).

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

33222464 is a wasteful number, since it uses less digits than its factorization.

33222464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215 (or 1205 counting only the distinct ones).

The product of its digits is 6912, while the sum is 26.

The square root of 33222464 is about 5763.8931287802. The cubic root of 33222464 is about 321.4725879944.

Adding to 33222464 its reverse (46422233), we get a palindrome (79644697).

The spelling of 33222464 in words is "thirty-three million, two hundred twenty-two thousand, four hundred sixty-four".