42435489 has 8 divisors (see below), whose sum is σ = 56874592. Its totient is φ = 28143360.

The previous prime is 42435487. The next prime is 42435509. The reversal of 42435489 is 98453424.

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

It is not a de Polignac number, because 42435489 - 2¹ = 42435487 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42435487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36067 + ... + 37224.

It is an arithmetic number, because the mean of its divisors is an integer number (7109324).

Almost surely, 2^42435489 is an apocalyptic number.

It is an amenable number.

42435489 is a deficient number, since it is larger than the sum of its proper divisors (14439103).

42435489 is a wasteful number, since it uses less digits than its factorization.

42435489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73487.

The product of its digits is 138240, while the sum is 39.

The square root of 42435489 is about 6514.2527583753. The cubic root of 42435489 is about 348.7999417180.

It can be divided in two parts, 42435 and 489, that added together give a palindrome (42924).

The spelling of 42435489 in words is "forty-two million, four hundred thirty-five thousand, four hundred eighty-nine".