2281944961 has 8 divisors (see below), whose sum is σ = 2287251080. Its totient is φ = 2276646912.

The previous prime is 2281944949. The next prime is 2281945007. The reversal of 2281944961 is 1694491822.

It can be written as a sum of positive squares in 4 ways, for example, as 67600 + 2281877361 = 260^2 + 47769^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2281944961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2281944911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1300861 + ... + 1302613.

It is an arithmetic number, because the mean of its divisors is an integer number (285906385).

Almost surely, 2^2281944961 is an apocalyptic number.

It is an amenable number.

2281944961 is a deficient number, since it is larger than the sum of its proper divisors (5306119).

2281944961 is a wasteful number, since it uses less digits than its factorization.

2281944961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4035.

The product of its digits is 248832, while the sum is 46.

The square root of 2281944961 is about 47769.7075666159. The cubic root of 2281944961 is about 1316.5430206452.

The spelling of 2281944961 in words is "two billion, two hundred eighty-one million, nine hundred forty-four thousand, nine hundred sixty-one".