40191106 has 4 divisors (see below), whose sum is σ = 60286662. Its totient is φ = 20095552.

The previous prime is 40191101. The next prime is 40191113. The reversal of 40191106 is 60119104.

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., 26061025 + 14130081 = 5105^2 + 3759^2 .

It is not an unprimeable number, because it can be changed into a prime (40191101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10047775 + ... + 10047778.

Almost surely, 2^40191106 is an apocalyptic number.

40191106 is a deficient number, since it is larger than the sum of its proper divisors (20095556).

40191106 is a wasteful number, since it uses less digits than its factorization.

40191106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20095555.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 40191106 is about 6339.6455736894. The cubic root of 40191106 is about 342.5389686955.

The spelling of 40191106 in words is "forty million, one hundred ninety-one thousand, one hundred six".