111344442 has 48 divisors (see below), whose sum is σ = 247316160. Its totient is φ = 33390720.

The previous prime is 111344413. The next prime is 111344447. The reversal of 111344442 is 244443111.

It is not an unprimeable number, because it can be changed into a prime (111344447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74034 + ... + 75522.

It is an arithmetic number, because the mean of its divisors is an integer number (5152420).

Almost surely, 2^111344442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111344442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123658080).

111344442 is an abundant number, since it is smaller than the sum of its proper divisors (135971718).

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

111344442 is a wasteful number, since it uses less digits than its factorization.

111344442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619 (or 1608 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 111344442 is about 10551.9875852846. The cubic root of 111344442 is about 481.0861428553.

Adding to 111344442 its reverse (244443111), we get a palindrome (355787553).

It can be divided in two parts, 11134 and 4442, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 111344442 in words is "one hundred eleven million, three hundred forty-four thousand, four hundred forty-two".