2281398912 has 512 divisors, whose sum is σ = 8019648000. Its totient is φ = 631701504.

The previous prime is 2281398901. The next prime is 2281398943. The reversal of 2281398912 is 2198931822.

It is a happy number.

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 63 ways as a sum of consecutive naturals, for example, 22149453 + ... + 22149555.

It is an arithmetic number, because the mean of its divisors is an integer number (15663375).

Almost surely, 2^2281398912 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 2281398912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4009824000).

2281398912 is an abundant number, since it is smaller than the sum of its proper divisors (5738249088).

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

2281398912 is a wasteful number, since it uses less digits than its factorization.

2281398912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 167 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 2281398912 is about 47763.9917929815. The cubic root of 2281398912 is about 1316.4379999484.

The spelling of 2281398912 in words is "two billion, two hundred eighty-one million, three hundred ninety-eight thousand, nine hundred twelve".