40118166 has 80 divisors (see below), whose sum is σ = 100362240. Its totient is φ = 11873520.

The previous prime is 40118161. The next prime is 40118167. The reversal of 40118166 is 66181104.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40118161) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 83515 + ... + 83993.

It is an arithmetic number, because the mean of its divisors is an integer number (1254528).

Almost surely, 2^40118166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40118166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50181120).

40118166 is an abundant number, since it is smaller than the sum of its proper divisors (60244074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40118166 is a wasteful number, since it uses less digits than its factorization.

40118166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 40118166 is about 6333.8902737575. The cubic root of 40118166 is about 342.3316266200.

The spelling of 40118166 in words is "forty million, one hundred eighteen thousand, one hundred sixty-six".