42539461 has 8 divisors (see below), whose sum is σ = 44953920. Its totient is φ = 40142592.

The previous prime is 42539429. The next prime is 42539467. The reversal of 42539461 is 16493524.

It is a happy number.

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

It is not a de Polignac number, because 42539461 - 2⁵ = 42539429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42539467) 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, 741 + ... + 9253.

It is an arithmetic number, because the mean of its divisors is an integer number (5619240).

Almost surely, 2^42539461 is an apocalyptic number.

It is an amenable number.

42539461 is a deficient number, since it is larger than the sum of its proper divisors (2414459).

42539461 is a wasteful number, since it uses less digits than its factorization.

42539461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8795.

The product of its digits is 25920, while the sum is 34.

The square root of 42539461 is about 6522.2282235445. The cubic root of 42539461 is about 349.0845765087.

The spelling of 42539461 in words is "forty-two million, five hundred thirty-nine thousand, four hundred sixty-one".