22742253 has 12 divisors (see below), whose sum is σ = 32960928. Its totient is φ = 15110280.

The previous prime is 22742197. The next prime is 22742273. The reversal of 22742253 is 35224722.

It is not a de Polignac number, because 22742253 - 2⁸ = 22741997 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22742273) 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 11 ways as a sum of consecutive naturals, for example, 1353 + ... + 6878.

It is an arithmetic number, because the mean of its divisors is an integer number (2746744).

Almost surely, 2^22742253 is an apocalyptic number.

It is an amenable number.

22742253 is a deficient number, since it is larger than the sum of its proper divisors (10218675).

22742253 is a wasteful number, since it uses less digits than its factorization.

22742253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8544 (or 8541 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 22742253 is about 4768.8838316738. The cubic root of 22742253 is about 283.3203886435.

Adding to 22742253 its reverse (35224722), we get a palindrome (57966975).

It can be divided in two parts, 227422 and 53, that added together give a triangular number (227475 = T₆₇₄).

The spelling of 22742253 in words is "twenty-two million, seven hundred forty-two thousand, two hundred fifty-three".