33226644 has 48 divisors (see below), whose sum is σ = 85188096. Its totient is φ = 9996000.

The previous prime is 33226621. The next prime is 33226657. The reversal of 33226644 is 44662233.

It is a happy number.

It is a super-2 number, since 2×33226644² = 2208019743005472, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19099 + ... + 20765.

It is an arithmetic number, because the mean of its divisors is an integer number (1774752).

Almost surely, 2^33226644 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 33226644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42594048).

33226644 is an abundant number, since it is smaller than the sum of its proper divisors (51961452).

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

33226644 is a wasteful number, since it uses less digits than its factorization.

33226644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836 (or 1834 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

The square root of 33226644 is about 5764.2557195183. The cubic root of 33226644 is about 321.4860698267.

Adding to 33226644 its reverse (44662233), we get a palindrome (77888877).

The spelling of 33226644 in words is "thirty-three million, two hundred twenty-six thousand, six hundred forty-four".