42539613 has 8 divisors (see below), whose sum is σ = 59704800. Its totient is φ = 26867088.

The previous prime is 42539611. The next prime is 42539617. The reversal of 42539613 is 31693524.

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

It is not a de Polignac number, because 42539613 - 2¹ = 42539611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42539611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373098 + ... + 373211.

It is an arithmetic number, because the mean of its divisors is an integer number (7463100).

Almost surely, 2^42539613 is an apocalyptic number.

It is an amenable number.

42539613 is a deficient number, since it is larger than the sum of its proper divisors (17165187).

42539613 is a wasteful number, since it uses less digits than its factorization.

42539613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746331.

The product of its digits is 19440, while the sum is 33.

The square root of 42539613 is about 6522.2398759935. The cubic root of 42539613 is about 349.0849922857.

The spelling of 42539613 in words is "forty-two million, five hundred thirty-nine thousand, six hundred thirteen".