111422440 has 24 divisors (see below), whose sum is σ = 250850790. Its totient is φ = 44542272.

The previous prime is 111422431. The next prime is 111422453. The reversal of 111422440 is 44224111.

It can be written as a sum of positive squares in 3 ways, for example, as 92044836 + 19377604 = 9594^2 + 4402^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65926 + ... + 67594.

Almost surely, 2^111422440 is an apocalyptic number.

111422440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111422440 is an abundant number, since it is smaller than the sum of its proper divisors (139428350).

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

111422440 is an frugal number, since it uses more digits than its factorization.

111422440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349 (or 1676 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 111422440 is about 10555.6828296421. The cubic root of 111422440 is about 481.1984520039.

Adding to 111422440 its reverse (44224111), we get a palindrome (155646551).

The spelling of 111422440 in words is "one hundred eleven million, four hundred twenty-two thousand, four hundred forty".