2843138 has 4 divisors (see below), whose sum is σ = 4264710. Its totient is φ = 1421568.

The previous prime is 2843119. The next prime is 2843143. The reversal of 2843138 is 8313482.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2569609 + 273529 = 1603^2 + 523^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2843138.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710783 + ... + 710786.

2^2843138 is an apocalyptic number.

2843138 is a deficient number, since it is larger than the sum of its proper divisors (1421572).

2843138 is a wasteful number, since it uses less digits than its factorization.

2843138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421571.

The product of its digits is 4608, while the sum is 29.

The square root of 2843138 is about 1686.1607278074. The cubic root of 2843138 is about 141.6661136464. Note that the first 3 decimals are identical.

The spelling of 2843138 in words is "two million, eight hundred forty-three thousand, one hundred thirty-eight".