2223742 has 8 divisors (see below), whose sum is σ = 3355416. Its totient is φ = 1105272.

The previous prime is 2223731. The next prime is 2223743. The reversal of 2223742 is 2473222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 2⁴ + 2¹³ + 2²⁰ + 3⁶ + 7⁶ + 4 + 2²⁰ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223743) 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, 2868 + ... + 3559.

It is an arithmetic number, because the mean of its divisors is an integer number (419427).

2^2223742 is an apocalyptic number.

2223742 is a deficient number, since it is larger than the sum of its proper divisors (1131674).

2223742 is a wasteful number, since it uses less digits than its factorization.

2223742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6602.

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

The square root of 2223742 is about 1491.2216468386. The cubic root of 2223742 is about 130.5253299041.

Adding to 2223742 its reverse (2473222), we get a palindrome (4696964).

The spelling of 2223742 in words is "two million, two hundred twenty-three thousand, seven hundred forty-two".