40443400671 has 8 divisors (see below), whose sum is σ = 55381954224. Its totient is φ = 26233557120.

The previous prime is 40443400633. The next prime is 40443400681. The reversal of 40443400671 is 17600434404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40443400671 - 2⁶ = 40443400607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40443400681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182177370 + ... + 182177591.

It is an arithmetic number, because the mean of its divisors is an integer number (6922744278).

Almost surely, 2^40443400671 is an apocalyptic number.

40443400671 is a deficient number, since it is larger than the sum of its proper divisors (14938553553).

40443400671 is a wasteful number, since it uses less digits than its factorization.

40443400671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364355001.

The product of its (nonzero) digits is 32256, while the sum is 33.

The spelling of 40443400671 in words is "forty billion, four hundred forty-three million, four hundred thousand, six hundred seventy-one".