42838899 has 8 divisors (see below), whose sum is σ = 57434832. Its totient is φ = 28401120.

The previous prime is 42838889. The next prime is 42838907. The reversal of 42838899 is 99883824.

It is a happy number.

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

It is not a de Polignac number, because 42838899 - 2⁴ = 42838883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42838889) 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, 38904 + ... + 39989.

It is an arithmetic number, because the mean of its divisors is an integer number (7179354).

Almost surely, 2^42838899 is an apocalyptic number.

42838899 is a deficient number, since it is larger than the sum of its proper divisors (14595933).

42838899 is a wasteful number, since it uses less digits than its factorization.

42838899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79077.

The product of its digits is 995328, while the sum is 51.

The square root of 42838899 is about 6545.1431611539. The cubic root of 42838899 is about 349.9017384023.

The spelling of 42838899 in words is "forty-two million, eight hundred thirty-eight thousand, eight hundred ninety-nine".