2144355520 has 112 divisors (see below), whose sum is σ = 5425610688. Its totient is φ = 804454400.

The previous prime is 2144355517. The next prime is 2144355557. The reversal of 2144355520 is 255534412.

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, 2180949 + ... + 2181931.

Almost surely, 2^2144355520 is an apocalyptic number.

2144355520 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 2144355520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2712805344).

2144355520 is an abundant number, since it is smaller than the sum of its proper divisors (3281255168).

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

2144355520 is a wasteful number, since it uses less digits than its factorization.

2144355520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418 (or 1408 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2144355520 is about 46307.1864833095. The cubic root of 2144355520 is about 1289.5324147148.

Adding to 2144355520 its reverse (255534412), we get a palindrome (2399889932).

The spelling of 2144355520 in words is "two billion, one hundred forty-four million, three hundred fifty-five thousand, five hundred twenty".