40105464194 has 8 divisors (see below), whose sum is σ = 60195870588. Its totient is φ = 20040174000.

The previous prime is 40105464193. The next prime is 40105464209. The reversal of 40105464194 is 49146450104.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40078038025 + 27426169 = 200195^2 + 5237^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40105464193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6275057 + ... + 6281444.

Almost surely, 2^40105464194 is an apocalyptic number.

40105464194 is a deficient number, since it is larger than the sum of its proper divisors (20090406394).

40105464194 is a wasteful number, since it uses less digits than its factorization.

40105464194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12558100.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 40105464194 in words is "forty billion, one hundred five million, four hundred sixty-four thousand, one hundred ninety-four".