2223890 has 8 divisors (see below), whose sum is σ = 4003020. Its totient is φ = 889552.

The previous prime is 2223883. The next prime is 2223901. The reversal of 2223890 is 983222.

2223890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2140369 + 83521 = 1463^2 + 289^2 .

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

It is an unprimeable number.

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, 111185 + ... + 111204.

2^2223890 is an apocalyptic number.

2223890 is a deficient number, since it is larger than the sum of its proper divisors (1779130).

2223890 is a wasteful number, since it uses less digits than its factorization.

2223890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222396.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2223890 is about 1491.2712697561. The cubic root of 2223890 is about 130.5282255218.

It can be divided in two parts, 2223 and 890, that added together give a palindrome (3113).

The spelling of 2223890 in words is "two million, two hundred twenty-three thousand, eight hundred ninety".