40539135 has 64 divisors (see below), whose sum is σ = 84575232. Its totient is φ = 16091136.

The previous prime is 40539091. The next prime is 40539137. The reversal of 40539135 is 53193504.

It is not a de Polignac number, because 40539135 - 2⁹ = 40538623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40539137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22332 + ... + 24078.

It is an arithmetic number, because the mean of its divisors is an integer number (1321488).

Almost surely, 2^40539135 is an apocalyptic number.

40539135 is an abundant number, since it is smaller than the sum of its proper divisors (44036097).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40539135 is a wasteful number, since it uses less digits than its factorization.

40539135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 40539135 is about 6367.0350242479. The cubic root of 40539135 is about 343.5248504700.

The spelling of 40539135 in words is "forty million, five hundred thirty-nine thousand, one hundred thirty-five".