22729283 has 4 divisors (see below), whose sum is σ = 22829640. Its totient is φ = 22628928.

The previous prime is 22729277. The next prime is 22729297. The reversal of 22729283 is 38292722.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22729283 - 2¹² = 22725187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22729253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49838 + ... + 50291.

It is an arithmetic number, because the mean of its divisors is an integer number (5707410).

Almost surely, 2^22729283 is an apocalyptic number.

22729283 is a deficient number, since it is larger than the sum of its proper divisors (100357).

22729283 is a wasteful number, since it uses less digits than its factorization.

22729283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100356.

The product of its digits is 24192, while the sum is 35.

The square root of 22729283 is about 4767.5237807482. The cubic root of 22729283 is about 283.2665188089.

The spelling of 22729283 in words is "twenty-two million, seven hundred twenty-nine thousand, two hundred eighty-three".