40544194 has 4 divisors (see below), whose sum is σ = 60816294. Its totient is φ = 20272096.

The previous prime is 40544183. The next prime is 40544197. The reversal of 40544194 is 49144504.

40544194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22439169 + 18105025 = 4737^2 + 4255^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (40544197) by changing a digit.

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 as a sum of consecutive naturals, namely, 10136047 + ... + 10136050.

Almost surely, 2^40544194 is an apocalyptic number.

40544194 is a deficient number, since it is larger than the sum of its proper divisors (20272100).

40544194 is a wasteful number, since it uses less digits than its factorization.

40544194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20272099.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 40544194 is about 6367.4322925336. The cubic root of 40544194 is about 343.5391397071.

Adding to 40544194 its reverse (49144504), we get a palindrome (89688698).

The spelling of 40544194 in words is "forty million, five hundred forty-four thousand, one hundred ninety-four".