42540735 has 16 divisors (see below), whose sum is σ = 68342400. Its totient is φ = 22596000.

The previous prime is 42540733. The next prime is 42540761. The reversal of 42540735 is 53704524.

It is not a de Polignac number, because 42540735 - 2¹ = 42540733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42540733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1885 + ... + 9414.

It is an arithmetic number, because the mean of its divisors is an integer number (4271400).

Almost surely, 2^42540735 is an apocalyptic number.

42540735 is a deficient number, since it is larger than the sum of its proper divisors (25801665).

42540735 is a wasteful number, since it uses less digits than its factorization.

42540735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11558.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 42540735 is about 6522.3258888222. The cubic root of 42540735 is about 349.0880613461.

The spelling of 42540735 in words is "forty-two million, five hundred forty thousand, seven hundred thirty-five".