40947166 has 16 divisors (see below), whose sum is σ = 69627600. Its totient is φ = 17903808.

The previous prime is 40947157. The next prime is 40947167. The reversal of 40947166 is 66174904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40947167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40951 + ... + 41938.

It is an arithmetic number, because the mean of its divisors is an integer number (4351725).

Almost surely, 2^40947166 is an apocalyptic number.

40947166 is a deficient number, since it is larger than the sum of its proper divisors (28680434).

40947166 is a wasteful number, since it uses less digits than its factorization.

40947166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82923.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 40947166 is about 6398.9972651971. The cubic root of 40947166 is about 344.6735440208.

The spelling of 40947166 in words is "forty million, nine hundred forty-seven thousand, one hundred sixty-six".