111432442 has 16 divisors (see below), whose sum is σ = 188632800. Its totient is φ = 48904240.

The previous prime is 111432439. The next prime is 111432449. The reversal of 111432442 is 244234111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (111432449) 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, 86692 + ... + 87967.

It is an arithmetic number, because the mean of its divisors is an integer number (11789550).

Almost surely, 2^111432442 is an apocalyptic number.

111432442 is a deficient number, since it is larger than the sum of its proper divisors (77200358).

111432442 is a wasteful number, since it uses less digits than its factorization.

111432442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174701.

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

The square root of 111432442 is about 10556.1565922451. The cubic root of 111432442 is about 481.2128500698.

Adding to 111432442 its reverse (244234111), we get a palindrome (355666553).

The spelling of 111432442 in words is "one hundred eleven million, four hundred thirty-two thousand, four hundred forty-two".