40018166 has 8 divisors (see below), whose sum is σ = 61044840. Its totient is φ = 19669888.

The previous prime is 40018157. The next prime is 40018169. The reversal of 40018166 is 66181004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40018166² = 3202907220007112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40018169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169451 + ... + 169686.

It is an arithmetic number, because the mean of its divisors is an integer number (7630605).

Almost surely, 2^40018166 is an apocalyptic number.

40018166 is a deficient number, since it is larger than the sum of its proper divisors (21026674).

40018166 is a wasteful number, since it uses less digits than its factorization.

40018166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339198.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 40018166 is about 6325.9913057164. The cubic root of 40018166 is about 342.0469538716.

It can be divided in two parts, 4001 and 8166, that added together give a cube (12167 = 23³).

The spelling of 40018166 in words is "forty million, eighteen thousand, one hundred sixty-six".