40489166 has 4 divisors (see below), whose sum is σ = 60733752. Its totient is φ = 20244582.

The previous prime is 40489151. The next prime is 40489199. The reversal of 40489166 is 66198404.

40489166 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 is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 10122290 + ... + 10122293.

It is an arithmetic number, because the mean of its divisors is an integer number (15183438).

Almost surely, 2^40489166 is an apocalyptic number.

40489166 is a deficient number, since it is larger than the sum of its proper divisors (20244586).

40489166 is a wasteful number, since it uses less digits than its factorization.

40489166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20244585.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 40489166 is about 6363.1097743163. The cubic root of 40489166 is about 343.3836482225.

The spelling of 40489166 in words is "forty million, four hundred eighty-nine thousand, one hundred sixty-six".