1122444 has 48 divisors (see below), whose sum is σ = 3068800. Its totient is φ = 353808.

The previous prime is 1122437. The next prime is 1122449. The reversal of 1122444 is 4442211.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1122449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1779 + ... + 2325.

2^1122444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1534400).

1122444 is an abundant number, since it is smaller than the sum of its proper divisors (1946356).

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

1122444 is a wasteful number, since it uses less digits than its factorization.

1122444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 571 counting only the distinct ones).

The product of its digits is 256, while the sum is 18.

The square root of 1122444 is about 1059.4545766573. The cubic root of 1122444 is about 103.9253655844.

Adding to 1122444 its reverse (4442211), we get a palindrome (5564655).

It can be divided in two parts, 112 and 2444, that added together give a triangular number (2556 = T₇₁).

The spelling of 1122444 in words is "one million, one hundred twenty-two thousand, four hundred forty-four".