111243444 has 48 divisors (see below), whose sum is σ = 295985088. Its totient is φ = 32214528.

The previous prime is 111243413. The next prime is 111243467. The reversal of 111243444 is 444342111.

It is a super-2 number, since 2×111243444² = 24750207665962272, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18322 + ... + 23625.

It is an arithmetic number, because the mean of its divisors is an integer number (6166356).

Almost surely, 2^111243444 is an apocalyptic number.

It is an amenable number.

111243444 is an abundant number, since it is smaller than the sum of its proper divisors (184741644).

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

111243444 is a wasteful number, since it uses less digits than its factorization.

111243444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41984 (or 41982 counting only the distinct ones).

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

The square root of 111243444 is about 10547.2007660801. The cubic root of 111243444 is about 480.9406381014.

Adding to 111243444 its reverse (444342111), we get a palindrome (555585555).

The spelling of 111243444 in words is "one hundred eleven million, two hundred forty-three thousand, four hundred forty-four".