2144664210 has 128 divisors (see below), whose sum is σ = 5808692736. Its totient is φ = 502824960.

The previous prime is 2144664209. The next prime is 2144664211. The reversal of 2144664210 is 124664412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2144664209) and next prime (2144664211).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (2144664211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3345490 + ... + 3346130.

It is an arithmetic number, because the mean of its divisors is an integer number (45380412).

Almost surely, 2^2144664210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2144664210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2904346368).

2144664210 is an abundant number, since it is smaller than the sum of its proper divisors (3664028526).

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

2144664210 is a wasteful number, since it uses less digits than its factorization.

2144664210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 2144664210 is about 46310.5194313344. The cubic root of 2144664210 is about 1289.5942898187.

The spelling of 2144664210 in words is "two billion, one hundred forty-four million, six hundred sixty-four thousand, two hundred ten".