111444400 has 30 divisors (see below), whose sum is σ = 267746132. Its totient is φ = 44577600.

The previous prime is 111444397. The next prime is 111444439. The reversal of 111444400 is 4444111.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138906 + ... + 139705.

Almost surely, 2^111444400 is an apocalyptic number.

111444400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111444400 is an abundant number, since it is smaller than the sum of its proper divisors (156301732).

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

111444400 is a wasteful number, since it uses less digits than its factorization.

111444400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278629 (or 278618 counting only the distinct ones).

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

The square root of 111444400 is about 10556.7229763786. The cubic root of 111444400 is about 481.2300627036.

Adding to 111444400 its reverse (4444111), we get a palindrome (115888511).

The spelling of 111444400 in words is "one hundred eleven million, four hundred forty-four thousand, four hundred".