40906539 has 40 divisors (see below), whose sum is σ = 65897568. Its totient is φ = 25194240.

The previous prime is 40906519. The next prime is 40906583. The reversal of 40906539 is 93560904.

40906539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40906539 - 2¹⁵ = 40873771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40906519) 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 in 39 ways as a sum of consecutive naturals, for example, 83754 + ... + 84240.

Almost surely, 2^40906539 is an apocalyptic number.

40906539 is a deficient number, since it is larger than the sum of its proper divisors (24991029).

40906539 is a wasteful number, since it uses less digits than its factorization.

40906539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577 (or 568 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 40906539 is about 6395.8219956468. The cubic root of 40906539 is about 344.5595134526.

The spelling of 40906539 in words is "forty million, nine hundred six thousand, five hundred thirty-nine".