22743 has 18 divisors (see below), whose sum is σ = 39624. Its totient is φ = 12312.

The previous prime is 22741. The next prime is 22751. The reversal of 22743 is 34722.

It is a happy number.

22743 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 22743 - 2¹ = 22741 is a prime.

22743 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22741) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1188 + ... + 1206.

2²²⁷⁴³ is an apocalyptic number.

22743 is a deficient number, since it is larger than the sum of its proper divisors (16881).

22743 is a wasteful number, since it uses less digits than its factorization.

22743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51 (or 29 counting only the distinct ones).

The product of its digits is 336, while the sum is 18.

The square root of 22743 is about 150.8078247307. The cubic root of 22743 is about 28.3323490623.

The spelling of 22743 in words is "twenty-two thousand, seven hundred forty-three", and thus it is an iban number.