22243743 has 6 divisors (see below), whose sum is σ = 32129864. Its totient is φ = 14829156.

The previous prime is 22243733. The next prime is 22243787. The reversal of 22243743 is 34734222.

22243743 is a `hidden beast` number, since 222 + 437 + 4 + 3 = 666.

It is not a de Polignac number, because 22243743 - 2²¹ = 20146591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22243723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1235755 + ... + 1235772.

Almost surely, 2^22243743 is an apocalyptic number.

22243743 is a deficient number, since it is larger than the sum of its proper divisors (9886121).

22243743 is a wasteful number, since it uses less digits than its factorization.

22243743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471533 (or 2471530 counting only the distinct ones).

The product of its digits is 8064, while the sum is 27.

The square root of 22243743 is about 4716.3272787202. The cubic root of 22243743 is about 281.2349491205.

Adding to 22243743 its reverse (34734222), we get a palindrome (56977965).

The spelling of 22243743 in words is "twenty-two million, two hundred forty-three thousand, seven hundred forty-three".