40285539 has 32 divisors (see below), whose sum is σ = 69808640. Its totient is φ = 22480416.

The previous prime is 40285537. The next prime is 40285547. The reversal of 40285539 is 93558204.

40285539 is a `hidden beast` number, since 40 + 2 + 85 + 539 = 666.

It is not a de Polignac number, because 40285539 - 2¹ = 40285537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40285537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5649 + ... + 10605.

It is an arithmetic number, because the mean of its divisors is an integer number (2181520).

Almost surely, 2^40285539 is an apocalyptic number.

40285539 is a deficient number, since it is larger than the sum of its proper divisors (29523101).

40285539 is a wasteful number, since it uses less digits than its factorization.

40285539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016 (or 5010 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 40285539 is about 6347.0890178097. The cubic root of 40285539 is about 342.8070353112.

The spelling of 40285539 in words is "forty million, two hundred eighty-five thousand, five hundred thirty-nine".