2144443870 has 16 divisors (see below), whose sum is σ = 4027825440. Its totient is φ = 820482784.

The previous prime is 2144443849. The next prime is 2144443883. The reversal of 2144443870 is 783444412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4661605 + ... + 4662064.

It is an arithmetic number, because the mean of its divisors is an integer number (251739090).

Almost surely, 2^2144443870 is an apocalyptic number.

2144443870 is a deficient number, since it is larger than the sum of its proper divisors (1883381570).

2144443870 is a wasteful number, since it uses less digits than its factorization.

2144443870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9323699.

The product of its (nonzero) digits is 86016, while the sum is 37.

The square root of 2144443870 is about 46308.1404290865. The cubic root of 2144443870 is about 1289.5501245618.

The spelling of 2144443870 in words is "two billion, one hundred forty-four million, four hundred forty-three thousand, eight hundred seventy".