22133804 has 72 divisors (see below), whose sum is σ = 50050560. Its totient is φ = 8379360.

The previous prime is 22133747. The next prime is 22133821. The reversal of 22133804 is 40833122.

It is a self number, because there is not a number n which added to its sum of digits gives 22133804.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159167 + ... + 159305.

Almost surely, 2^22133804 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 22133804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25025280).

22133804 is an abundant number, since it is smaller than the sum of its proper divisors (27916756).

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

22133804 is a wasteful number, since it uses less digits than its factorization.

22133804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 22133804 is about 4704.6576921175. The cubic root of 22133804 is about 280.7708520541.

Adding to 22133804 its reverse (40833122), we get a palindrome (62966926).

The spelling of 22133804 in words is "twenty-two million, one hundred thirty-three thousand, eight hundred four".