22333729 has 8 divisors (see below), whose sum is σ = 24464160. Its totient is φ = 20220000.

The previous prime is 22333691. The next prime is 22333739. The reversal of 22333729 is 92733322.

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 22333729 - 2⁹ = 22333217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22333729.

It is not an unprimeable number, because it can be changed into a prime (22333739) 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, 1284 + ... + 6805.

It is an arithmetic number, because the mean of its divisors is an integer number (3058020).

Almost surely, 2^22333729 is an apocalyptic number.

It is an amenable number.

22333729 is a deficient number, since it is larger than the sum of its proper divisors (2130431).

22333729 is a wasteful number, since it uses less digits than its factorization.

22333729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8351.

The product of its digits is 13608, while the sum is 31.

The square root of 22333729 is about 4725.8574883295. The cubic root of 22333729 is about 281.6136797184.

The spelling of 22333729 in words is "twenty-two million, three hundred thirty-three thousand, seven hundred twenty-nine".