2742223 has 12 divisors (see below), whose sum is σ = 3054744. Its totient is φ = 2459600.

The previous prime is 2742217. The next prime is 2742227. The reversal of 2742223 is 3222472.

It is a de Polignac number, because none of the positive numbers 2^k-2742223 is a prime.

2742223 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2742194 and 2742203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2742227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15765 + ... + 15937.

It is an arithmetic number, because the mean of its divisors is an integer number (254562).

2^2742223 is an apocalyptic number.

2742223 is a deficient number, since it is larger than the sum of its proper divisors (312521).

2742223 is a wasteful number, since it uses less digits than its factorization.

2742223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 315 counting only the distinct ones).

The product of its digits is 1344, while the sum is 22.

The square root of 2742223 is about 1655.9658812910. The cubic root of 2742223 is about 139.9697723855.

Adding to 2742223 its reverse (3222472), we get a palindrome (5964695).

Subtracting 2742223 from its reverse (3222472), we obtain a square (480249 = 693²).

The spelling of 2742223 in words is "two million, seven hundred forty-two thousand, two hundred twenty-three".