22320043 has 4 divisors (see below), whose sum is σ = 22570920. Its totient is φ = 22069168.

The previous prime is 22320019. The next prime is 22320059. The reversal of 22320043 is 34002322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22320043 is a prime.

It is a super-3 number, since 3×22320043³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22319999 and 22320026.

It is not an unprimeable number, because it can be changed into a prime (22320743) 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 3 ways as a sum of consecutive naturals, for example, 125305 + ... + 125482.

It is an arithmetic number, because the mean of its divisors is an integer number (5642730).

Almost surely, 2^22320043 is an apocalyptic number.

22320043 is a deficient number, since it is larger than the sum of its proper divisors (250877).

22320043 is an equidigital number, since it uses as much as digits as its factorization.

22320043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250876.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 22320043 is about 4724.4092752428. The cubic root of 22320043 is about 281.5561441353.

Adding to 22320043 its reverse (34002322), we get a palindrome (56322365).

The spelling of 22320043 in words is "twenty-two million, three hundred twenty thousand, forty-three".