42040535 has 8 divisors (see below), whose sum is σ = 50593680. Its totient is φ = 33535744.

The previous prime is 42040469. The next prime is 42040601. The reversal of 42040535 is 53504024.

It is an interprime number because it is at equal distance from previous prime (42040469) and next prime (42040601).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42040535 - 2²⁴ = 25263319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42040535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10145 + ... + 13674.

It is an arithmetic number, because the mean of its divisors is an integer number (6324210).

Almost surely, 2^42040535 is an apocalyptic number.

42040535 is a deficient number, since it is larger than the sum of its proper divisors (8553145).

42040535 is a wasteful number, since it uses less digits than its factorization.

42040535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24177.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 42040535 is about 6483.8672873525. The cubic root of 42040535 is about 347.7144545170.

Adding to 42040535 its reverse (53504024), we get a palindrome (95544559).

The spelling of 42040535 in words is "forty-two million, forty thousand, five hundred thirty-five".