2144623632 has 80 divisors (see below), whose sum is σ = 5845667520. Its totient is φ = 675648000.

The previous prime is 2144623609. The next prime is 2144623639. The reversal of 2144623632 is 2363264412.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2144623593 and 2144623602.

It is not an unprimeable number, because it can be changed into a prime (2144623639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417882 + ... + 422982.

It is an arithmetic number, because the mean of its divisors is an integer number (73070844).

Almost surely, 2^2144623632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2144623632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2922833760).

2144623632 is an abundant number, since it is smaller than the sum of its proper divisors (3701043888).

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

2144623632 is a wasteful number, since it uses less digits than its factorization.

2144623632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5592 (or 5586 counting only the distinct ones).

The product of its digits is 41472, while the sum is 33.

The square root of 2144623632 is about 46310.0813214574. The cubic root of 2144623632 is about 1289.5861565350.

The spelling of 2144623632 in words is "two billion, one hundred forty-four million, six hundred twenty-three thousand, six hundred thirty-two".