40445131776 has 88 divisors (see below), whose sum is σ = 123201233280. Its totient is φ = 11555745792.

The previous prime is 40445131763. The next prime is 40445131777. The reversal of 40445131776 is 67713154404.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40445131777) 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 7 ways as a sum of consecutive naturals, for example, 918906 + ... + 961913.

Almost surely, 2^40445131776 is an apocalyptic number.

It is an amenable number.

40445131776 is an abundant number, since it is smaller than the sum of its proper divisors (82756101504).

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

40445131776 is a wasteful number, since it uses less digits than its factorization.

40445131776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880849 (or 1880831 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 40445131776 in words is "forty billion, four hundred forty-five million, one hundred thirty-one thousand, seven hundred seventy-six".