2223291 has 8 divisors (see below), whose sum is σ = 3387904. Its totient is φ = 1270440.

The previous prime is 2223283. The next prime is 2223317. The reversal of 2223291 is 1923222.

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

It is not a de Polignac number, because 2223291 - 2³ = 2223283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 105871 = 2223291 / (2 + 2 + 2 + 3 + 2 + 9 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2223211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52915 + ... + 52956.

It is an arithmetic number, because the mean of its divisors is an integer number (423488).

2^2223291 is an apocalyptic number.

2223291 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2223291 is a deficient number, since it is larger than the sum of its proper divisors (1164613).

2223291 is a wasteful number, since it uses less digits than its factorization.

2223291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105881.

The product of its digits is 432, while the sum is 21.

The square root of 2223291 is about 1491.0704208722. The cubic root of 2223291 is about 130.5165053036.

The spelling of 2223291 in words is "two million, two hundred twenty-three thousand, two hundred ninety-one".