2281616 has 10 divisors (see below), whose sum is σ = 4420662. Its totient is φ = 1140800.

The previous prime is 2281607. The next prime is 2281619. The reversal of 2281616 is 6161822.

It can be written as a sum of positive squares in only one way, i.e., 2262016 + 19600 = 1504^2 + 140^2 .

It is not an unprimeable number, because it can be changed into a prime (2281619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71285 + ... + 71316.

2^2281616 is an apocalyptic number.

It is an amenable number.

2281616 is a deficient number, since it is larger than the sum of its proper divisors (2139046).

2281616 is a wasteful number, since it uses less digits than its factorization.

2281616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142609 (or 142603 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 2281616 is about 1510.5019033421. The cubic root of 2281616 is about 131.6479754129.

The spelling of 2281616 in words is "two million, two hundred eighty-one thousand, six hundred sixteen".