40392887 has 2 divisors, whose sum is σ = 40392888. Its totient is φ = 40392886.

The previous prime is 40392883. The next prime is 40392931. The reversal of 40392887 is 78829304.

40392887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40392887 - 2² = 40392883 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40392883) by changing a digit.

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 as a sum of consecutive naturals, namely, 20196443 + 20196444.

It is an arithmetic number, because the mean of its divisors is an integer number (20196444).

Almost surely, 2^40392887 is an apocalyptic number.

40392887 is a deficient number, since it is larger than the sum of its proper divisors (1).

40392887 is an equidigital number, since it uses as much as digits as its factorization.

40392887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 40392887 is about 6355.5398669193. The cubic root of 40392887 is about 343.1112554063. Note that the first 3 decimals are identical.

The spelling of 40392887 in words is "forty million, three hundred ninety-two thousand, eight hundred eighty-seven".