40187816 has 16 divisors (see below), whose sum is σ = 75530400. Its totient is φ = 20046384.

The previous prime is 40187801. The next prime is 40187821. The reversal of 40187816 is 61878104.

40187816 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 (35) 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 3 ways as a sum of consecutive naturals, for example, 2210 + ... + 9233.

It is an arithmetic number, because the mean of its divisors is an integer number (4720650).

Almost surely, 2^40187816 is an apocalyptic number.

It is an amenable number.

40187816 is a deficient number, since it is larger than the sum of its proper divisors (35342584).

40187816 is a wasteful number, since it uses less digits than its factorization.

40187816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11888 (or 11884 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 40187816 is about 6339.3860901510. The cubic root of 40187816 is about 342.5296218186.

The spelling of 40187816 in words is "forty million, one hundred eighty-seven thousand, eight hundred sixteen".