22733729 has 8 divisors (see below), whose sum is σ = 23770752. Its totient is φ = 21700800.

The previous prime is 22733723. The next prime is 22733749. The reversal of 22733729 is 92733722.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22733729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22733723) 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, 18329 + ... + 19529.

It is an arithmetic number, because the mean of its divisors is an integer number (2971344).

Almost surely, 2^22733729 is an apocalyptic number.

It is an amenable number.

22733729 is a deficient number, since it is larger than the sum of its proper divisors (1037023).

22733729 is a wasteful number, since it uses less digits than its factorization.

22733729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047.

The product of its digits is 31752, while the sum is 35.

The square root of 22733729 is about 4767.9900377413. The cubic root of 22733729 is about 283.2849872143.

The spelling of 22733729 in words is "twenty-two million, seven hundred thirty-three thousand, seven hundred twenty-nine".