40644130443 has 8 divisors (see below), whose sum is σ = 61933913088. Its totient is φ = 23225217384.

The previous prime is 40644130441. The next prime is 40644130469. The reversal of 40644130443 is 34403144604.

40644130443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40644130443 - 2¹ = 40644130441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40644130441) 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, 967717371 + ... + 967717412.

It is an arithmetic number, because the mean of its divisors is an integer number (7741739136).

Almost surely, 2^40644130443 is an apocalyptic number.

40644130443 is a deficient number, since it is larger than the sum of its proper divisors (21289782645).

40644130443 is a wasteful number, since it uses less digits than its factorization.

40644130443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935434793.

The product of its (nonzero) digits is 55296, while the sum is 33.

The spelling of 40644130443 in words is "forty billion, six hundred forty-four million, one hundred thirty thousand, four hundred forty-three".