40387850 has 12 divisors (see below), whose sum is σ = 75121494. Its totient is φ = 16155120.

The previous prime is 40387847. The next prime is 40387861. The reversal of 40387850 is 5878304.

It can be written as a sum of positive squares in 3 ways, for example, as 28270489 + 12117361 = 5317^2 + 3481^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40387850.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 403829 + ... + 403928.

Almost surely, 2^40387850 is an apocalyptic number.

40387850 is a deficient number, since it is larger than the sum of its proper divisors (34733644).

40387850 is a wasteful number, since it uses less digits than its factorization.

40387850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807769 (or 807764 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 40387850 is about 6355.1435861041. The cubic root of 40387850 is about 343.0969928025.

The spelling of 40387850 in words is "forty million, three hundred eighty-seven thousand, eight hundred fifty".