408105194 has 16 divisors (see below), whose sum is σ = 712810368. Its totient is φ = 171601872.

The previous prime is 408105193. The next prime is 408105209. The reversal of 408105194 is 491501804.

It is a self number, because there is not a number n which added to its sum of digits gives 408105194.

It is not an unprimeable number, because it can be changed into a prime (408105193) 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 7 ways as a sum of consecutive naturals, for example, 274262 + ... + 275745.

It is an arithmetic number, because the mean of its divisors is an integer number (44550648).

Almost surely, 2^408105194 is an apocalyptic number.

408105194 is a deficient number, since it is larger than the sum of its proper divisors (304705174).

408105194 is a wasteful number, since it uses less digits than its factorization.

408105194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550069.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 408105194 is about 20201.6136484193. The cubic root of 408105194 is about 741.7496909512.

Adding to 408105194 its reverse (491501804), we get a palindrome (899606998).

The spelling of 408105194 in words is "four hundred eight million, one hundred five thousand, one hundred ninety-four".