22209733 has 16 divisors (see below), whose sum is σ = 28220416. Its totient is φ = 17003520.

The previous prime is 22209713. The next prime is 22209749. The reversal of 22209733 is 33790222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22209733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22209713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1116 + ... + 6757.

It is an arithmetic number, because the mean of its divisors is an integer number (1763776).

Almost surely, 2^22209733 is an apocalyptic number.

It is an amenable number.

22209733 is a deficient number, since it is larger than the sum of its proper divisors (6010683).

22209733 is a wasteful number, since it uses less digits than its factorization.

22209733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7924.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 22209733 is about 4712.7203396764. The cubic root of 22209733 is about 281.0915428073.

Adding to 22209733 its reverse (33790222), we get a palindrome (55999955).

The spelling of 22209733 in words is "twenty-two million, two hundred nine thousand, seven hundred thirty-three".