2442139 has 8 divisors (see below), whose sum is σ = 2801120. Its totient is φ = 2085696.

The previous prime is 2442133. The next prime is 2442151. The reversal of 2442139 is 9312442.

2442139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2442139 - 2⁵ = 2442107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2442133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2437 + ... + 3289.

It is an arithmetic number, because the mean of its divisors is an integer number (350140).

2^2442139 is an apocalyptic number.

2442139 is a deficient number, since it is larger than the sum of its proper divisors (358981).

2442139 is an equidigital number, since it uses as much as digits as its factorization.

2442139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269.

The product of its digits is 1728, while the sum is 25.

The square root of 2442139 is about 1562.7344624088. The cubic root of 2442139 is about 134.6656380287.

The spelling of 2442139 in words is "two million, four hundred forty-two thousand, one hundred thirty-nine".