2272743 has 18 divisors (see below), whose sum is σ = 3610152. Its totient is φ = 1376760.

The previous prime is 2272733. The next prime is 2272757. The reversal of 2272743 is 3472722.

It is not a de Polignac number, because 2272743 - 2⁴ = 2272727 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272733) 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 17 ways as a sum of consecutive naturals, for example, 46 + ... + 2132.

It is an arithmetic number, because the mean of its divisors is an integer number (200564).

2^2272743 is an apocalyptic number.

2272743 is a deficient number, since it is larger than the sum of its proper divisors (1337409).

2272743 is a wasteful number, since it uses less digits than its factorization.

2272743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115 (or 2101 counting only the distinct ones).

The product of its digits is 4704, while the sum is 27.

The square root of 2272743 is about 1507.5619390261. The cubic root of 2272743 is about 131.4770979889.

The spelling of 2272743 in words is "two million, two hundred seventy-two thousand, seven hundred forty-three".