111444450 has 96 divisors (see below), whose sum is σ = 302438976. Its totient is φ = 26991360.

The previous prime is 111444449. The next prime is 111444479. The reversal of 111444450 is 54444111.

It is a self number, because there is not a number n which added to its sum of digits gives 111444450.

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 47 ways as a sum of consecutive naturals, for example, 130224 + ... + 131076.

It is an arithmetic number, because the mean of its divisors is an integer number (3150406).

Almost surely, 2^111444450 is an apocalyptic number.

111444450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111444450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151219488).

111444450 is an abundant number, since it is smaller than the sum of its proper divisors (190994526).

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

111444450 is a wasteful number, since it uses less digits than its factorization.

111444450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948 (or 943 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 111444450 is about 10556.7253445375. The cubic root of 111444450 is about 481.2301346722.

Adding to 111444450 its reverse (54444111), we get a palindrome (165888561).

The spelling of 111444450 in words is "one hundred eleven million, four hundred forty-four thousand, four hundred fifty".