40722044805 has 144 divisors (see below), whose sum is σ = 79617060432. Its totient is φ = 19229184000.

The previous prime is 40722044719. The next prime is 40722044821. The reversal of 40722044805 is 50844022704.

40722044805 is a `hidden beast` number, since 407 + 2 + 204 + 48 + 0 + 5 = 666.

It can be written as a sum of positive squares in 24 ways, for example, as 40698220644 + 23824161 = 201738^2 + 4881^2 .

It is not a de Polignac number, because 40722044805 - 2⁷ = 40722044677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40722044805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 19019035 + ... + 19021175.

It is an arithmetic number, because the mean of its divisors is an integer number (552896253).

Almost surely, 2^40722044805 is an apocalyptic number.

40722044805 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40722044805 is a deficient number, since it is larger than the sum of its proper divisors (38895015627).

40722044805 is a wasteful number, since it uses less digits than its factorization.

40722044805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280 (or 2264 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The spelling of 40722044805 in words is "forty billion, seven hundred twenty-two million, forty-four thousand, eight hundred five".