2276981 has 12 divisors (see below), whose sum is σ = 2736000. Its totient is φ = 1887480.

The previous prime is 2276969. The next prime is 2276999. The reversal of 2276981 is 1896722.

2276981 = 44² + 45² + ... + 190².

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2276981 is a prime.

It is a super-2 number, since 2×2276981² = 10369284948722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2276921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 770 + ... + 2268.

It is an arithmetic number, because the mean of its divisors is an integer number (228000).

2^2276981 is an apocalyptic number.

It is an amenable number.

2276981 is a deficient number, since it is larger than the sum of its proper divisors (459019).

2276981 is a wasteful number, since it uses less digits than its factorization.

2276981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544 (or 1537 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 2276981 is about 1508.9668651100. The cubic root of 2276981 is about 131.5587693381.

The spelling of 2276981 in words is "two million, two hundred seventy-six thousand, nine hundred eighty-one".