19242078 has 8 divisors (see below), whose sum is σ = 38484168. Its totient is φ = 6414024.

The previous prime is 19242073. The next prime is 19242101. The reversal of 19242078 is 87024291.

It is a happy number.

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

19242078 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19242071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1603501 + ... + 1603512.

It is an arithmetic number, because the mean of its divisors is an integer number (4810521).

Almost surely, 2^19242078 is an apocalyptic number.

19242078 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.

19242078 is a wasteful number, since it uses less digits than its factorization.

19242078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207018.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 19242078 is about 4386.5793051078. The cubic root of 19242078 is about 267.9686511932.

The spelling of 19242078 in words is "nineteen million, two hundred forty-two thousand, seventy-eight".