40285537 has 2 divisors, whose sum is σ = 40285538. Its totient is φ = 40285536.

The previous prime is 40285501. The next prime is 40285547. The reversal of 40285537 is 73558204.

It is a happy number.

40285537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20784481 + 19501056 = 4559^2 + 4416^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40285537 is a prime.

It is not a weakly prime, because it can be changed into another prime (40285547) 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, 20142768 + 20142769.

It is an arithmetic number, because the mean of its divisors is an integer number (20142769).

Almost surely, 2^40285537 is an apocalyptic number.

It is an amenable number.

40285537 is a deficient number, since it is larger than the sum of its proper divisors (1).

40285537 is an equidigital number, since it uses as much as digits as its factorization.

40285537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 40285537 is about 6347.0888602571. The cubic root of 40285537 is about 342.8070296383.

The spelling of 40285537 in words is "forty million, two hundred eighty-five thousand, five hundred thirty-seven".