19110042 has 24 divisors (see below), whose sum is σ = 47320416. Its totient is φ = 5459976.

The previous prime is 19110037. The next prime is 19110061. The reversal of 19110042 is 24001191.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 19109997 and 19110024.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75708 + ... + 75959.

It is an arithmetic number, because the mean of its divisors is an integer number (1971684).

Almost surely, 2^19110042 is an apocalyptic number.

19110042 is an abundant number, since it is smaller than the sum of its proper divisors (28210374).

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

19110042 is a wasteful number, since it uses less digits than its factorization.

19110042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151682 (or 151679 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 19110042 is about 4371.5034027209. The cubic root of 19110042 is about 267.3543248518.

The spelling of 19110042 in words is "nineteen million, one hundred ten thousand, forty-two".