40285787 has 2 divisors, whose sum is σ = 40285788. Its totient is φ = 40285786.

The previous prime is 40285783. The next prime is 40285789. The reversal of 40285787 is 78758204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40285787 - 2² = 40285783 is a prime.

Together with 40285789, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40285783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20142893 + 20142894.

It is an arithmetic number, because the mean of its divisors is an integer number (20142894).

Almost surely, 2^40285787 is an apocalyptic number.

40285787 is a deficient number, since it is larger than the sum of its proper divisors (1).

40285787 is an equidigital number, since it uses as much as digits as its factorization.

40285787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 40285787 is about 6347.1085542946. The cubic root of 40285787 is about 342.8077387561.

The spelling of 40285787 in words is "forty million, two hundred eighty-five thousand, seven hundred eighty-seven".