42839618 has 8 divisors (see below), whose sum is σ = 64288512. Its totient is φ = 21410116.

The previous prime is 42839611. The next prime is 42839647. The reversal of 42839618 is 81693824.

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

It is not an unprimeable number, because it can be changed into a prime (42839611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3671 + ... + 9957.

It is an arithmetic number, because the mean of its divisors is an integer number (8036064).

Almost surely, 2^42839618 is an apocalyptic number.

42839618 is a deficient number, since it is larger than the sum of its proper divisors (21448894).

42839618 is a wasteful number, since it uses less digits than its factorization.

42839618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9696.

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

The square root of 42839618 is about 6545.1980871476. The cubic root of 42839618 is about 349.9036959529.

The spelling of 42839618 in words is "forty-two million, eight hundred thirty-nine thousand, six hundred eighteen".