40085868 has 24 divisors (see below), whose sum is σ = 94133872. Its totient is φ = 13276224.

The previous prime is 40085831. The next prime is 40085887. The reversal of 40085868 is 86858004.

40085868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8755 + ... + 12522.

Almost surely, 2^40085868 is an apocalyptic number.

It is an amenable number.

40085868 is an abundant number, since it is smaller than the sum of its proper divisors (54048004).

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

40085868 is a wasteful number, since it uses less digits than its factorization.

40085868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21441 (or 21439 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 40085868 is about 6331.3401424975. The cubic root of 40085868 is about 342.2397347878.

It can be divided in two parts, 400 and 85868, that added together give a palindrome (86268).

The spelling of 40085868 in words is "forty million, eighty-five thousand, eight hundred sixty-eight".