2286981 has 16 divisors (see below), whose sum is σ = 3438720. Its totient is φ = 1501920.

The previous prime is 2286979. The next prime is 2286983. The reversal of 2286981 is 1896822.

It is an interprime number because it is at equal distance from previous prime (2286979) and next prime (2286983).

It is not a de Polignac number, because 2286981 - 2¹ = 2286979 is a prime.

It is a super-3 number, since 3×2286981³ = 35884667323331442423, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2286983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1321 + ... + 2513.

It is an arithmetic number, because the mean of its divisors is an integer number (214920).

2^2286981 is an apocalyptic number.

It is an amenable number.

2286981 is a deficient number, since it is larger than the sum of its proper divisors (1151739).

2286981 is a wasteful number, since it uses less digits than its factorization.

2286981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273 (or 1267 counting only the distinct ones).

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

The square root of 2286981 is about 1512.2767603848. The cubic root of 2286981 is about 131.7510804809.

The spelling of 2286981 in words is "two million, two hundred eighty-six thousand, nine hundred eighty-one".