2281749056 has 84 divisors (see below), whose sum is σ = 4705526784. Its totient is φ = 1097671680.

The previous prime is 2281749053. The next prime is 2281749077. The reversal of 2281749056 is 6509471822.

It is a happy number.

It is a super-2 number, since 2×2281749056² = 10412757509113782272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2281748998 and 2281749016.

It is not an unprimeable number, because it can be changed into a prime (2281749053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13663085 + ... + 13663251.

It is an arithmetic number, because the mean of its divisors is an integer number (56018176).

Almost surely, 2^2281749056 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 2281749056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2352763392).

2281749056 is an abundant number, since it is smaller than the sum of its proper divisors (2423777728).

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

2281749056 is a wasteful number, since it uses less digits than its factorization.

2281749056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 2281749056 is about 47767.6570076448. The cubic root of 2281749056 is about 1316.5053444894.

The spelling of 2281749056 in words is "two billion, two hundred eighty-one million, seven hundred forty-nine thousand, fifty-six".