22040343 has 24 divisors (see below), whose sum is σ = 35559888. Its totient is φ = 13561344.

The previous prime is 22040303. The next prime is 22040353. The reversal of 22040343 is 34304022.

22040343 is a `hidden beast` number, since 220 + 403 + 43 = 666.

It is not a de Polignac number, because 22040343 - 2¹² = 22036247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22040303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 330 + ... + 6647.

It is an arithmetic number, because the mean of its divisors is an integer number (1481662).

Almost surely, 2^22040343 is an apocalyptic number.

22040343 is a deficient number, since it is larger than the sum of its proper divisors (13519545).

22040343 is an equidigital number, since it uses as much as digits as its factorization.

22040343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7005 (or 6993 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 22040343 is about 4694.7143683083. The cubic root of 22040343 is about 280.3751052547.

Adding to 22040343 its reverse (34304022), we get a palindrome (56344365).

The spelling of 22040343 in words is "twenty-two million, forty thousand, three hundred forty-three".