2281193280 has 560 divisors, whose sum is σ = 8922203136. Its totient is φ = 550748160.

The previous prime is 2281193251. The next prime is 2281193281. The reversal of 2281193280 is 823911822.

2281193280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281193281) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 13659757 + ... + 13659923.

Almost surely, 2^2281193280 is an apocalyptic number.

2281193280 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 2281193280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4461101568).

2281193280 is an abundant number, since it is smaller than the sum of its proper divisors (6641009856).

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

2281193280 is a wasteful number, since it uses less digits than its factorization.

2281193280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 2281193280 is about 47761.8391605683. The cubic root of 2281193280 is about 1316.3984467440.

The spelling of 2281193280 in words is "two billion, two hundred eighty-one million, one hundred ninety-three thousand, two hundred eighty".