22009737 has 8 divisors (see below), whose sum is σ = 29461536. Its totient is φ = 14615552.

The previous prime is 22009723. The next prime is 22009739. The reversal of 22009737 is 73790022.

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 22009737 - 2¹⁰ = 22008713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22009739) 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, 13503 + ... + 15044.

It is an arithmetic number, because the mean of its divisors is an integer number (3682692).

Almost surely, 2^22009737 is an apocalyptic number.

It is an amenable number.

22009737 is a deficient number, since it is larger than the sum of its proper divisors (7451799).

22009737 is a wasteful number, since it uses less digits than its factorization.

22009737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28807.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 22009737 is about 4691.4536126876. The cubic root of 22009737 is about 280.2452655395.

Adding to 22009737 its reverse (73790022), we get a palindrome (95799759).

The spelling of 22009737 in words is "twenty-two million, nine thousand, seven hundred thirty-seven".