42560239 has 8 divisors (see below), whose sum is σ = 44478720. Its totient is φ = 40684056.

The previous prime is 42560237. The next prime is 42560251. The reversal of 42560239 is 93206524.

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 42560239 - 2¹ = 42560237 is a prime.

It is a super-2 number, since 2×42560239² = 3622747887474242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42560239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42560233) 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, 8509 + ... + 12550.

It is an arithmetic number, because the mean of its divisors is an integer number (5559840).

Almost surely, 2^42560239 is an apocalyptic number.

42560239 is a deficient number, since it is larger than the sum of its proper divisors (1918481).

42560239 is a wasteful number, since it uses less digits than its factorization.

42560239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21149.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 42560239 is about 6523.8208896321. The cubic root of 42560239 is about 349.1414029513.

The spelling of 42560239 in words is "forty-two million, five hundred sixty thousand, two hundred thirty-nine".