40055886 has 24 divisors (see below), whose sum is σ = 93464280. Its totient is φ = 12324816.

The previous prime is 40055879. The next prime is 40055909. The reversal of 40055886 is 68855004.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40055886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85356 + ... + 85823.

It is an arithmetic number, because the mean of its divisors is an integer number (3894345).

Almost surely, 2^40055886 is an apocalyptic number.

40055886 is an abundant number, since it is smaller than the sum of its proper divisors (53408394).

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

40055886 is a wasteful number, since it uses less digits than its factorization.

40055886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171200 (or 171197 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 40055886 is about 6328.9719544330. The cubic root of 40055886 is about 342.1543880764.

The spelling of 40055886 in words is "forty million, fifty-five thousand, eight hundred eighty-six".