40403944198 has 8 divisors (see below), whose sum is σ = 63240956208. Its totient is φ = 19323625464.

The previous prime is 40403944153. The next prime is 40403944219. The reversal of 40403944198 is 89144930404.

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

It is a Harshad number since it is a multiple of its sum of digits (46), and also a Moran number because the ratio is a prime number: 878346613 = 40403944198 / (4 + 0 + 4 + 0 + 3 + 9 + 4 + 4 + 1 + 9 + 8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439173261 + ... + 439173352.

It is an arithmetic number, because the mean of its divisors is an integer number (7905119526).

Almost surely, 2^40403944198 is an apocalyptic number.

40403944198 is a deficient number, since it is larger than the sum of its proper divisors (22837012010).

40403944198 is a wasteful number, since it uses less digits than its factorization.

40403944198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878346638.

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 40403944198 in words is "forty billion, four hundred three million, nine hundred forty-four thousand, one hundred ninety-eight".