111400426 has 16 divisors (see below), whose sum is σ = 174653640. Its totient is φ = 53222400.

The previous prime is 111400423. The next prime is 111400427. The reversal of 111400426 is 624004111.

It can be written as a sum of positive squares in 4 ways, for example, as 54774801 + 56625625 = 7401^2 + 7525^2 .

It is not an unprimeable number, because it can be changed into a prime (111400423) 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, 4275 + ... + 15526.

Almost surely, 2^111400426 is an apocalyptic number.

111400426 is a deficient number, since it is larger than the sum of its proper divisors (63253214).

111400426 is a wasteful number, since it uses less digits than its factorization.

111400426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19929.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 111400426 is about 10554.6400222840. The cubic root of 111400426 is about 481.1667594040.

Adding to 111400426 its reverse (624004111), we get a palindrome (735404537).

The spelling of 111400426 in words is "one hundred eleven million, four hundred thousand, four hundred twenty-six".