42618893 has 8 divisors (see below), whose sum is σ = 45511680. Its totient is φ = 39821040.

The previous prime is 42618889. The next prime is 42618899. The reversal of 42618893 is 39881624.

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 42618893 - 2² = 42618889 is a prime.

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 42618893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42618899) 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, 22805 + ... + 24602.

It is an arithmetic number, because the mean of its divisors is an integer number (5688960).

Almost surely, 2^42618893 is an apocalyptic number.

It is an amenable number.

42618893 is a deficient number, since it is larger than the sum of its proper divisors (2892787).

42618893 is a wasteful number, since it uses less digits than its factorization.

42618893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47467.

The product of its digits is 82944, while the sum is 41.

The square root of 42618893 is about 6528.3147136148. The cubic root of 42618893 is about 349.3017179941.

The spelling of 42618893 in words is "forty-two million, six hundred eighteen thousand, eight hundred ninety-three".