22406533 has 8 divisors (see below), whose sum is σ = 22830080. Its totient is φ = 21986640.

The previous prime is 22406513. The next prime is 22406537. The reversal of 22406533 is 33560422.

It is a happy number.

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 22406533 - 2²¹ = 20309381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22406498 and 22406507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22406537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13516 + ... + 15082.

It is an arithmetic number, because the mean of its divisors is an integer number (2853760).

Almost surely, 2^22406533 is an apocalyptic number.

It is an amenable number.

22406533 is a deficient number, since it is larger than the sum of its proper divisors (423547).

22406533 is a wasteful number, since it uses less digits than its factorization.

22406533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 22406533 is about 4733.5539502577. The cubic root of 22406533 is about 281.9193513823.

Adding to 22406533 its reverse (33560422), we get a palindrome (55966955).

The spelling of 22406533 in words is "twenty-two million, four hundred six thousand, five hundred thirty-three".