42716881 has 8 divisors (see below), whose sum is σ = 43265664. Its totient is φ = 42170880.

The previous prime is 42716879. The next prime is 42716923. The reversal of 42716881 is 18861724.

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 42716881 - 2¹ = 42716879 is a prime.

It is a super-2 number, since 2×42716881² = 3649463844736322, 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 42716881.

It is not an unprimeable number, because it can be changed into a prime (42716851) 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, 65700 + ... + 66346.

It is an arithmetic number, because the mean of its divisors is an integer number (5408208).

Almost surely, 2^42716881 is an apocalyptic number.

It is an amenable number.

42716881 is a deficient number, since it is larger than the sum of its proper divisors (548783).

42716881 is a wasteful number, since it uses less digits than its factorization.

42716881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391.

The product of its digits is 21504, while the sum is 37.

The square root of 42716881 is about 6535.8152513669. The cubic root of 42716881 is about 349.5692142170.

The spelling of 42716881 in words is "forty-two million, seven hundred sixteen thousand, eight hundred eighty-one".