42619839 has 8 divisors (see below), whose sum is σ = 57674880. Its totient is φ = 27989016.

The previous prime is 42619817. The next prime is 42619847. The reversal of 42619839 is 93891624.

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

It is not a de Polignac number, because 42619839 - 2⁷ = 42619711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42619839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42619849) 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, 105819 + ... + 106220.

It is an arithmetic number, because the mean of its divisors is an integer number (7209360).

Almost surely, 2^42619839 is an apocalyptic number.

42619839 is a deficient number, since it is larger than the sum of its proper divisors (15055041).

42619839 is a wasteful number, since it uses less digits than its factorization.

42619839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212109.

The product of its digits is 93312, while the sum is 42.

The square root of 42619839 is about 6528.3871668277. The cubic root of 42619839 is about 349.3043024268.

The spelling of 42619839 in words is "forty-two million, six hundred nineteen thousand, eight hundred thirty-nine".