2223842 has 4 divisors (see below), whose sum is σ = 3335766. Its totient is φ = 1111920.

The previous prime is 2223841. The next prime is 2223853. The reversal of 2223842 is 2483222.

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

It can be written as a sum of positive squares in only one way, i.e., 1485961 + 737881 = 1219^2 + 859^2 .

It is not an unprimeable number, because it can be changed into a prime (2223841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555959 + ... + 555962.

2^2223842 is an apocalyptic number.

2223842 is a deficient number, since it is larger than the sum of its proper divisors (1111924).

2223842 is a wasteful number, since it uses less digits than its factorization.

2223842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111923.

The product of its digits is 1536, while the sum is 23.

The square root of 2223842 is about 1491.2551760178. The cubic root of 2223842 is about 130.5272864166.

The spelling of 2223842 in words is "two million, two hundred twenty-three thousand, eight hundred forty-two".