2844142868 has 72 divisors (see below), whose sum is σ = 6006498120. Its totient is φ = 1173553920.

The previous prime is 2844142867. The next prime is 2844142877. The reversal of 2844142868 is 8682414482.

It can be written as a sum of positive squares in 4 ways, for example, as 964226704 + 1879916164 = 31052^2 + 43358^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2844142867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3756746 + ... + 3757502.

It is an arithmetic number, because the mean of its divisors is an integer number (83423585).

Almost surely, 2^2844142868 is an apocalyptic number.

2844142868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2844142868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3003249060).

2844142868 is an abundant number, since it is smaller than the sum of its proper divisors (3162355252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2844142868 is a wasteful number, since it uses less digits than its factorization.

2844142868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465 (or 1456 counting only the distinct ones).

The product of its digits is 786432, while the sum is 47.

The square root of 2844142868 is about 53330.5059792236. The cubic root of 2844142868 is about 1416.8280165998.

The spelling of 2844142868 in words is "two billion, eight hundred forty-four million, one hundred forty-two thousand, eight hundred sixty-eight".