40868188 has 6 divisors (see below), whose sum is σ = 71519336. Its totient is φ = 20434092.

The previous prime is 40868161. The next prime is 40868197. The reversal of 40868188 is 88186804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5108520 + ... + 5108527.

Almost surely, 2^40868188 is an apocalyptic number.

It is an amenable number.

40868188 is a deficient number, since it is larger than the sum of its proper divisors (30651148).

40868188 is a wasteful number, since it uses less digits than its factorization.

40868188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10217051 (or 10217049 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 43.

The square root of 40868188 is about 6392.8231635170. The cubic root of 40868188 is about 344.4518017930.

The spelling of 40868188 in words is "forty million, eight hundred sixty-eight thousand, one hundred eighty-eight".