2287998144 has 112 divisors (see below), whose sum is σ = 6747967200. Its totient is φ = 760209408.

The previous prime is 2287998143. The next prime is 2287998151. The reversal of 2287998144 is 4418997822.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2287998143) 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, 580372 + ... + 584300.

Almost surely, 2^2287998144 is an apocalyptic number.

2287998144 is a gapful number since it is divisible by the number (24) 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 2287998144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3373983600).

2287998144 is an abundant number, since it is smaller than the sum of its proper divisors (4459969056).

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

2287998144 is a wasteful number, since it uses less digits than its factorization.

2287998144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4287 (or 4271 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 2287998144 is about 47833.0235715870. The cubic root of 2287998144 is about 1317.7060986026.

The spelling of 2287998144 in words is "two billion, two hundred eighty-seven million, nine hundred ninety-eight thousand, one hundred forty-four".