22287343 has 4 divisors (see below), whose sum is σ = 24001768. Its totient is φ = 20572920.

The previous prime is 22287337. The next prime is 22287359. The reversal of 22287343 is 34378222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34378222 = 2 ⋅17189111.

It is a cyclic number.

It is not a de Polignac number, because 22287343 - 2¹³ = 22279151 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 (22287383) 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, 857193 + ... + 857218.

It is an arithmetic number, because the mean of its divisors is an integer number (6000442).

Almost surely, 2^22287343 is an apocalyptic number.

22287343 is a deficient number, since it is larger than the sum of its proper divisors (1714425).

22287343 is a wasteful number, since it uses less digits than its factorization.

22287343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714424.

The product of its digits is 16128, while the sum is 31.

The square root of 22287343 is about 4720.9472566425. The cubic root of 22287343 is about 281.4185789021.

The spelling of 22287343 in words is "twenty-two million, two hundred eighty-seven thousand, three hundred forty-three".