22133004 has 12 divisors (see below), whose sum is σ = 51643704. Its totient is φ = 7377664.

The previous prime is 22132987. The next prime is 22133017. The reversal of 22133004 is 40033122.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 922197 + ... + 922220.

It is an arithmetic number, because the mean of its divisors is an integer number (4303642).

Almost surely, 2^22133004 is an apocalyptic number.

It is an amenable number.

22133004 is an abundant number, since it is smaller than the sum of its proper divisors (29510700).

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

22133004 is a wasteful number, since it uses less digits than its factorization.

22133004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844424 (or 1844422 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 22133004 is about 4704.5726692230. The cubic root of 22133004 is about 280.7674693039.

Adding to 22133004 its reverse (40033122), we get a palindrome (62166126).

The spelling of 22133004 in words is "twenty-two million, one hundred thirty-three thousand, four".