40866986 has 16 divisors (see below), whose sum is σ = 64664160. Its totient is φ = 19316880.

The previous prime is 40866977. The next prime is 40867007. The reversal of 40866986 is 68966804.

It is a super-2 number, since 2×40866986² = 3340221089448392, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40866986.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24305 + ... + 25931.

It is an arithmetic number, because the mean of its divisors is an integer number (4041510).

Almost surely, 2^40866986 is an apocalyptic number.

40866986 is a deficient number, since it is larger than the sum of its proper divisors (23797174).

40866986 is a wasteful number, since it uses less digits than its factorization.

40866986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 40866986 is about 6392.7291511529. The cubic root of 40866986 is about 344.4484247970.

The spelling of 40866986 in words is "forty million, eight hundred sixty-six thousand, nine hundred eighty-six".