2144945706 has 16 divisors (see below), whose sum is σ = 4321206144. Its totient is φ = 709762784.

The previous prime is 2144945683. The next prime is 2144945711. The reversal of 2144945706 is 6075494412.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 1303890 + ... + 1305533.

It is an arithmetic number, because the mean of its divisors is an integer number (270075384).

Almost surely, 2^2144945706 is an apocalyptic number.

2144945706 is an abundant number, since it is smaller than the sum of its proper divisors (2176260438).

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

2144945706 is a wasteful number, since it uses less digits than its factorization.

2144945706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609565.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 2144945706 is about 46313.5585547040. The cubic root of 2144945706 is about 1289.6507088689.

The spelling of 2144945706 in words is "two billion, one hundred forty-four million, nine hundred forty-five thousand, seven hundred six".