22742297 has 8 divisors (see below), whose sum is σ = 24173760. Its totient is φ = 21334320.

The previous prime is 22742273. The next prime is 22742303. The reversal of 22742297 is 79224722.

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 22742297 - 2¹⁸ = 22480153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22742197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3854 + ... + 7767.

It is an arithmetic number, because the mean of its divisors is an integer number (3021720).

Almost surely, 2^22742297 is an apocalyptic number.

It is an amenable number.

22742297 is a deficient number, since it is larger than the sum of its proper divisors (1431463).

22742297 is a wasteful number, since it uses less digits than its factorization.

22742297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11743.

The product of its digits is 28224, while the sum is 35.

The square root of 22742297 is about 4768.8884449104. Note that the first 3 decimals coincide. The cubic root of 22742297 is about 283.3205713591.

It can be divided in two parts, 227 and 42297, that added together give a palindrome (42524).

The spelling of 22742297 in words is "twenty-two million, seven hundred forty-two thousand, two hundred ninety-seven".