40432220443 has 2 divisors, whose sum is σ = 40432220444. Its totient is φ = 40432220442.

The previous prime is 40432220431. The next prime is 40432220447. The reversal of 40432220443 is 34402223404.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40432220443 - 2¹³ = 40432212251 is a prime.

It is not a weakly prime, because it can be changed into another prime (40432220447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20216110221 + 20216110222.

It is an arithmetic number, because the mean of its divisors is an integer number (20216110222).

Almost surely, 2^40432220443 is an apocalyptic number.

40432220443 is a deficient number, since it is larger than the sum of its proper divisors (1).

40432220443 is an equidigital number, since it uses as much as digits as its factorization.

40432220443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 40432220443 its reverse (34402223404), we get a palindrome (74834443847).

The spelling of 40432220443 in words is "forty billion, four hundred thirty-two million, two hundred twenty thousand, four hundred forty-three".