1322440043 has 4 divisors (see below), whose sum is σ = 1326124080. Its totient is φ = 1318756008.

The previous prime is 1322440003. The next prime is 1322440057. The reversal of 1322440043 is 3400442231.

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

It is a cyclic number.

It is not a de Polignac number, because 1322440043 - 2²⁶ = 1255331179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1322440003) 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, 1841480 + ... + 1842197.

It is an arithmetic number, because the mean of its divisors is an integer number (331531020).

Almost surely, 2^1322440043 is an apocalyptic number.

1322440043 is a deficient number, since it is larger than the sum of its proper divisors (3684037).

1322440043 is an equidigital number, since it uses as much as digits as its factorization.

1322440043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684036.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1322440043 is about 36365.3687318031. The cubic root of 1322440043 is about 1097.6368117974.

Adding to 1322440043 its reverse (3400442231), we get a palindrome (4722882274).

The spelling of 1322440043 in words is "one billion, three hundred twenty-two million, four hundred forty thousand, forty-three".