2281644288 has 360 divisors, whose sum is σ = 8488159680. Its totient is φ = 592220160.

The previous prime is 2281644247. The next prime is 2281644293. The reversal of 2281644288 is 8824461822.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1595958 + ... + 1597386.

Almost surely, 2^2281644288 is an apocalyptic number.

2281644288 is a gapful number since it is divisible by the number (28) 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 2281644288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4244079840).

2281644288 is an abundant number, since it is smaller than the sum of its proper divisors (6206515392).

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

2281644288 is a wasteful number, since it uses less digits than its factorization.

2281644288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475 (or 1452 counting only the distinct ones).

The product of its digits is 393216, while the sum is 45.

The square root of 2281644288 is about 47766.5603534523. The cubic root of 2281644288 is about 1316.4851947797.

The spelling of 2281644288 in words is "two billion, two hundred eighty-one million, six hundred forty-four thousand, two hundred eighty-eight".