42535489 has 4 divisors (see below), whose sum is σ = 44002260. Its totient is φ = 41068720.

The previous prime is 42535469. The next prime is 42535499. The reversal of 42535489 is 98453524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18447025 + 24088464 = 4295^2 + 4908^2 .

It is a cyclic number.

It is not a de Polignac number, because 42535489 - 2¹³ = 42527297 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42535439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 733342 + ... + 733399.

It is an arithmetic number, because the mean of its divisors is an integer number (11000565).

Almost surely, 2^42535489 is an apocalyptic number.

It is an amenable number.

42535489 is a deficient number, since it is larger than the sum of its proper divisors (1466771).

42535489 is a wasteful number, since it uses less digits than its factorization.

42535489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466770.

The product of its digits is 172800, while the sum is 40.

The square root of 42535489 is about 6521.9237192718. The cubic root of 42535489 is about 349.0737112473.

The spelling of 42535489 in words is "forty-two million, five hundred thirty-five thousand, four hundred eighty-nine".