2298981 has 16 divisors (see below), whose sum is σ = 3291840. Its totient is φ = 1422720.

The previous prime is 2298977. The next prime is 2298983. The reversal of 2298981 is 1898922.

It is not a de Polignac number, because 2298981 - 2² = 2298977 is a prime.

It is a super-2 number, since 2×2298981² = 10570627276722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2298983) 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, 2641 + ... + 3401.

It is an arithmetic number, because the mean of its divisors is an integer number (205740).

2^2298981 is an apocalyptic number.

It is an amenable number.

2298981 is a deficient number, since it is larger than the sum of its proper divisors (992859).

2298981 is a wasteful number, since it uses less digits than its factorization.

2298981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836.

The product of its digits is 20736, while the sum is 39.

The square root of 2298981 is about 1516.2390972403. The cubic root of 2298981 is about 131.9811152965.

The spelling of 2298981 in words is "two million, two hundred ninety-eight thousand, nine hundred eighty-one".