2662243 has 4 divisors (see below), whose sum is σ = 2712528. Its totient is φ = 2611960.

The previous prime is 2662211. The next prime is 2662271. The reversal of 2662243 is 3422662.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2662243 - 2⁵ = 2662211 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 6³ + 6⁵ + 2¹⁹ + 2²¹ + 4² + 3³ .

It is a Duffinian number.

2662243 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2662943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25063 + ... + 25168.

It is an arithmetic number, because the mean of its divisors is an integer number (678132).

2^2662243 is an apocalyptic number.

2662243 is a deficient number, since it is larger than the sum of its proper divisors (50285).

2662243 is an equidigital number, since it uses as much as digits as its factorization.

2662243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50284.

The product of its digits is 3456, while the sum is 25.

The square root of 2662243 is about 1631.6381339010. The cubic root of 2662243 is about 138.5955324512.

The spelling of 2662243 in words is "two million, six hundred sixty-two thousand, two hundred forty-three".