40194901 has 4 divisors (see below), whose sum is σ = 40210092. Its totient is φ = 40179712.

The previous prime is 40194881. The next prime is 40194907. The reversal of 40194901 is 10949104.

40194901 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 2 ways, for example, as 33814225 + 6380676 = 5815^2 + 2526^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40194901 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40194901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40194907) 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 in 3 ways as a sum of consecutive naturals, for example, 2476 + ... + 9301.

It is an arithmetic number, because the mean of its divisors is an integer number (10052523).

Almost surely, 2^40194901 is an apocalyptic number.

It is an amenable number.

40194901 is a deficient number, since it is larger than the sum of its proper divisors (15191).

40194901 is a wasteful number, since it uses less digits than its factorization.

40194901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15190.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 40194901 is about 6339.9448735774. The cubic root of 40194901 is about 342.5497496419.

The spelling of 40194901 in words is "forty million, one hundred ninety-four thousand, nine hundred one".