22133431 has 8 divisors (see below), whose sum is σ = 22453200. Its totient is φ = 21816000.

The previous prime is 22133417. The next prime is 22133477. The reversal of 22133431 is 13433122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22133431 - 2¹³ = 22125239 is a prime.

It is a super-4 number, since 4×22133431⁴ (a number of 30 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22133399 and 22133408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22133401) 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, 26955 + ... + 27763.

It is an arithmetic number, because the mean of its divisors is an integer number (2806650).

Almost surely, 2^22133431 is an apocalyptic number.

22133431 is a deficient number, since it is larger than the sum of its proper divisors (319769).

22133431 is a wasteful number, since it uses less digits than its factorization.

22133431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169.

The product of its digits is 432, while the sum is 19.

The square root of 22133431 is about 4704.6180503841. The cubic root of 22133431 is about 280.7692748570.

Adding to 22133431 its reverse (13433122), we get a palindrome (35566553).

The spelling of 22133431 in words is "twenty-two million, one hundred thirty-three thousand, four hundred thirty-one".