2223381 has 4 divisors (see below), whose sum is σ = 2964512. Its totient is φ = 1482252.

The previous prime is 2223371. The next prime is 2223383. The reversal of 2223381 is 1833222.

2223381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2223381 - 2⁶ = 2223317 is a prime.

It is a super-3 number, since 3×2223381³ = 32973338794143046023, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370561 + ... + 370566.

It is an arithmetic number, because the mean of its divisors is an integer number (741128).

2^2223381 is an apocalyptic number.

It is an amenable number.

2223381 is a deficient number, since it is larger than the sum of its proper divisors (741131).

2223381 is an equidigital number, since it uses as much as digits as its factorization.

2223381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741130.

The product of its digits is 576, while the sum is 21.

The square root of 2223381 is about 1491.1006002279. The cubic root of 2223381 is about 130.5182664057.

The spelling of 2223381 in words is "two million, two hundred twenty-three thousand, three hundred eighty-one".