2144623000 has 128 divisors (see below), whose sum is σ = 5438160000. Its totient is φ = 786931200.

The previous prime is 2144622937. The next prime is 2144623009. The reversal of 2144623000 is 3264412.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144623009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2586586 + ... + 2587414.

It is an arithmetic number, because the mean of its divisors is an integer number (42485625).

Almost surely, 2^2144623000 is an apocalyptic number.

2144623000 is a gapful number since it is divisible by the number (20) 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 2144623000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2719080000).

2144623000 is an abundant number, since it is smaller than the sum of its proper divisors (3293537000).

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

2144623000 is a wasteful number, since it uses less digits than its factorization.

2144623000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062 (or 1048 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2144623000 is about 46310.0744978887. The cubic root of 2144623000 is about 1289.5860298588.

Adding to 2144623000 its reverse (3264412), we get a palindrome (2147887412).

The spelling of 2144623000 in words is "two billion, one hundred forty-four million, six hundred twenty-three thousand".