22229743 has 4 divisors (see below), whose sum is σ = 22243888. Its totient is φ = 22215600.

The previous prime is 22229719. The next prime is 22229771. The reversal of 22229743 is 34792222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34792222 = 2 ⋅17396111.

It is a cyclic number.

It is not a de Polignac number, because 22229743 - 2⁹ = 22229231 is a prime.

It is a super-2 number, since 2×22229743² = 988322947692098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22229443) 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, 4371 + ... + 7972.

It is an arithmetic number, because the mean of its divisors is an integer number (5560972).

Almost surely, 2^22229743 is an apocalyptic number.

22229743 is a deficient number, since it is larger than the sum of its proper divisors (14145).

22229743 is a wasteful number, since it uses less digits than its factorization.

22229743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14144.

The product of its digits is 12096, while the sum is 31.

The square root of 22229743 is about 4714.8428393744. The cubic root of 22229743 is about 281.1759345382.

The spelling of 22229743 in words is "twenty-two million, two hundred twenty-nine thousand, seven hundred forty-three".