2144821624 has 64 divisors (see below), whose sum is σ = 4536972000. Its totient is φ = 941990400.

The previous prime is 2144821607. The next prime is 2144821673. The reversal of 2144821624 is 4261284412.

It is a self number, because there is not a number n which added to its sum of digits gives 2144821624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 482934 + ... + 487354.

Almost surely, 2^2144821624 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 2144821624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2268486000).

2144821624 is an abundant number, since it is smaller than the sum of its proper divisors (2392150376).

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

2144821624 is a wasteful number, since it uses less digits than its factorization.

2144821624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4624 (or 4620 counting only the distinct ones).

The product of its digits is 24576, while the sum is 34.

The square root of 2144821624 is about 46312.2189492147. The cubic root of 2144821624 is about 1289.6258402479.

The spelling of 2144821624 in words is "two billion, one hundred forty-four million, eight hundred twenty-one thousand, six hundred twenty-four".