40166912 has 40 divisors (see below), whose sum is σ = 84499800. Its totient is φ = 19021824.

The previous prime is 40166909. The next prime is 40166927. The reversal of 40166912 is 21966104.

It is a super-2 number, since 2×40166912² = 3226761639231488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7664 + ... + 11792.

It is an arithmetic number, because the mean of its divisors is an integer number (2112495).

Almost surely, 2^40166912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40166912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42249900).

40166912 is an abundant number, since it is smaller than the sum of its proper divisors (44332888).

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

40166912 is an equidigital number, since it uses as much as digits as its factorization.

40166912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4166 (or 4150 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 40166912 is about 6337.7371356029. The cubic root of 40166912 is about 342.4702217171.

The spelling of 40166912 in words is "forty million, one hundred sixty-six thousand, nine hundred twelve".