1113444 has 36 divisors (see below), whose sum is σ = 2846844. Its totient is φ = 366912.

The previous prime is 1113421. The next prime is 1113451. The reversal of 1113444 is 4443111.

It can be written as a sum of positive squares in 2 ways, for example, as 788544 + 324900 = 888^2 + 570^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1113444² = 2479515082272, which contains 22 as substring.

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 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 11 ways as a sum of consecutive naturals, for example, 5554 + ... + 5750.

It is an arithmetic number, because the mean of its divisors is an integer number (79079).

2^1113444 is an apocalyptic number.

It is an amenable number.

1113444 is an abundant number, since it is smaller than the sum of its proper divisors (1733400).

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

1113444 is a wasteful number, since it uses less digits than its factorization.

1113444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 359 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 1113444 is about 1055.1985595138. The cubic root of 1113444 is about 103.6468544740.

Adding to 1113444 its reverse (4443111), we get a palindrome (5556555).

The spelling of 1113444 in words is "one million, one hundred thirteen thousand, four hundred forty-four".