2281743 has 8 divisors (see below), whose sum is σ = 3380400. Its totient is φ = 1521144.

The previous prime is 2281739. The next prime is 2281751. The reversal of 2281743 is 3471822.

It is not a de Polignac number, because 2281743 - 2² = 2281739 is a prime.

It is a super-2 number, since 2×2281743² = 10412702236098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 84509 = 2281743 / (2 + 2 + 8 + 1 + 7 + 4 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281793) 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, 42228 + ... + 42281.

It is an arithmetic number, because the mean of its divisors is an integer number (422550).

2^2281743 is an apocalyptic number.

2281743 is a deficient number, since it is larger than the sum of its proper divisors (1098657).

2281743 is an equidigital number, since it uses as much as digits as its factorization.

2281743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84518 (or 84512 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 2281743 is about 1510.5439417640. The cubic root of 2281743 is about 131.6504179774.

The spelling of 2281743 in words is "two million, two hundred eighty-one thousand, seven hundred forty-three".