40400220043 has 16 divisors (see below), whose sum is σ = 42474952960. Its totient is φ = 38377989216.

The previous prime is 40400220041. The next prime is 40400220067. The reversal of 40400220043 is 34002200404.

It is a cyclic number.

It is not a de Polignac number, because 40400220043 - 2¹ = 40400220041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40400220043.

It is not an unprimeable number, because it can be changed into a prime (40400220041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5639698 + ... + 5646856.

It is an arithmetic number, because the mean of its divisors is an integer number (2654684560).

Almost surely, 2^40400220043 is an apocalyptic number.

40400220043 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

40400220043 is a deficient number, since it is larger than the sum of its proper divisors (2074732917).

40400220043 is a wasteful number, since it uses less digits than its factorization.

40400220043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10786.

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 40400220043 its reverse (34002200404), we get a palindrome (74402420447).

The spelling of 40400220043 in words is "forty billion, four hundred million, two hundred twenty thousand, forty-three".