40443623178 has 16 divisors (see below), whose sum is σ = 92442567360. Its totient is φ = 11555320896.

The previous prime is 40443623167. The next prime is 40443623179. The reversal of 40443623178 is 87132634404.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 962943409 = 40443623178 / (4 + 0 + 4 + 4 + 3 + 6 + 2 + 3 + 1 + 7 + 8).

It is not an unprimeable number, because it can be changed into a prime (40443623179) 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, 481471663 + ... + 481471746.

It is an arithmetic number, because the mean of its divisors is an integer number (5777660460).

Almost surely, 2^40443623178 is an apocalyptic number.

40443623178 is an abundant number, since it is smaller than the sum of its proper divisors (51998944182).

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

40443623178 is a wasteful number, since it uses less digits than its factorization.

40443623178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962943421.

The product of its (nonzero) digits is 387072, while the sum is 42.

The spelling of 40443623178 in words is "forty billion, four hundred forty-three million, six hundred twenty-three thousand, one hundred seventy-eight".