111620442 has 8 divisors (see below), whose sum is σ = 223240896. Its totient is φ = 37206812.

The previous prime is 111620437. The next prime is 111620471. The reversal of 111620442 is 244026111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

111620442 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9301698 + ... + 9301709.

It is an arithmetic number, because the mean of its divisors is an integer number (27905112).

Almost surely, 2^111620442 is an apocalyptic number.

111620442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

111620442 is a wasteful number, since it uses less digits than its factorization.

111620442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18603412.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 111620442 is about 10565.0575956783. The cubic root of 111620442 is about 481.4833194382.

Adding to 111620442 its reverse (244026111), we get a palindrome (355646553).

The spelling of 111620442 in words is "one hundred eleven million, six hundred twenty thousand, four hundred forty-two".