40539785 has 48 divisors (see below), whose sum is σ = 60056640. Its totient is φ = 25891200.

The previous prime is 40539743. The next prime is 40539833. The reversal of 40539785 is 58793504.

It is not a de Polignac number, because 40539785 - 2¹² = 40535689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 687086 + ... + 687144.

It is an arithmetic number, because the mean of its divisors is an integer number (1251180).

Almost surely, 2^40539785 is an apocalyptic number.

It is an amenable number.

40539785 is a deficient number, since it is larger than the sum of its proper divisors (19516855).

40539785 is a wasteful number, since it uses less digits than its factorization.

40539785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 40539785 is about 6367.0860682105. The cubic root of 40539785 is about 343.5266864733.

The spelling of 40539785 in words is "forty million, five hundred thirty-nine thousand, seven hundred eighty-five".