42842399 has 8 divisors (see below), whose sum is σ = 44789760. Its totient is φ = 40902136.

The previous prime is 42842383. The next prime is 42842419. The reversal of 42842399 is 99324824.

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 42842399 - 2⁴ = 42842383 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 (42842339) 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, 13442 + ... + 16320.

It is an arithmetic number, because the mean of its divisors is an integer number (5598720).

Almost surely, 2^42842399 is an apocalyptic number.

42842399 is a deficient number, since it is larger than the sum of its proper divisors (1947361).

42842399 is a wasteful number, since it uses less digits than its factorization.

42842399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3549.

The product of its digits is 124416, while the sum is 41.

The square root of 42842399 is about 6545.4105295237. The cubic root of 42842399 is about 349.9112673021.

The spelling of 42842399 in words is "forty-two million, eight hundred forty-two thousand, three hundred ninety-nine".