111442044 has 24 divisors (see below), whose sum is σ = 297179008. Its totient is φ = 31840560.

The previous prime is 111442031. The next prime is 111442057. The reversal of 111442044 is 440244111.

It is an interprime number because it is at equal distance from previous prime (111442031) and next prime (111442057).

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

It is a self number, because there is not a number n which added to its sum of digits gives 111442044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 663262 + ... + 663429.

Almost surely, 2^111442044 is an apocalyptic number.

111442044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

111442044 is an abundant number, since it is smaller than the sum of its proper divisors (185736964).

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

111442044 is a wasteful number, since it uses less digits than its factorization.

111442044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326705 (or 1326703 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 111442044 is about 10556.6113881302. The cubic root of 111442044 is about 481.2266715177.

Adding to 111442044 its reverse (440244111), we get a palindrome (551686155).

The spelling of 111442044 in words is "one hundred eleven million, four hundred forty-two thousand, forty-four".