40440050768 has 20 divisors (see below), whose sum is σ = 84379721748. Its totient is φ = 18664638720.

The previous prime is 40440050767. The next prime is 40440050801. The reversal of 40440050768 is 86705004404.

It can be written as a sum of positive squares in 2 ways, for example, as 5249292304 + 35190758464 = 72452^2 + 187592^2 .

It is a super-2 number, since 2×40440050768² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40440050767) 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, 97211453 + ... + 97211868.

Almost surely, 2^40440050768 is an apocalyptic number.

It is an amenable number.

40440050768 is an abundant number, since it is smaller than the sum of its proper divisors (43939670980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40440050768 is a wasteful number, since it uses less digits than its factorization.

40440050768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194423342 (or 194423336 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 38.

The spelling of 40440050768 in words is "forty billion, four hundred forty million, fifty thousand, seven hundred sixty-eight".