111434440 has 32 divisors (see below), whose sum is σ = 270015480. Its totient is φ = 41144832.

The previous prime is 111434419. The next prime is 111434447. The reversal of 111434440 is 44434111.

It can be written as a sum of positive squares in 4 ways, for example, as 80676324 + 30758116 = 8982^2 + 5546^2 .

It is a super-2 number, since 2×111434440² = 24835268836227200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111434447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106629 + ... + 107668.

Almost surely, 2^111434440 is an apocalyptic number.

111434440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111434440 is an abundant number, since it is smaller than the sum of its proper divisors (158581040).

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

111434440 is a wasteful number, since it uses less digits than its factorization.

111434440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214321 (or 214317 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 111434440 is about 10556.2512285375. The cubic root of 111434440 is about 481.2157261249.

Adding to 111434440 its reverse (44434111), we get a palindrome (155868551).

The spelling of 111434440 in words is "one hundred eleven million, four hundred thirty-four thousand, four hundred forty".