1923222 has 32 divisors (see below), whose sum is σ = 4550400. Its totient is φ = 530208.

The previous prime is 1923221. The next prime is 1923253. The reversal of 1923222 is 2223291.

It is a super-2 number, since 2×1923222² = 7397565722568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1923221) 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 15 ways as a sum of consecutive naturals, for example, 429 + ... + 2007.

It is an arithmetic number, because the mean of its divisors is an integer number (142200).

2^1923222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1923222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2275200).

1923222 is an abundant number, since it is smaller than the sum of its proper divisors (2627178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1923222 is a wasteful number, since it uses less digits than its factorization.

1923222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620.

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

The square root of 1923222 is about 1386.8027978051. The cubic root of 1923222 is about 124.3587857115.

It can be divided in two parts, 1923 and 222, that added together give a triangular number (2145 = T₆₅).

The spelling of 1923222 in words is "one million, nine hundred twenty-three thousand, two hundred twenty-two".