19242028 has 24 divisors (see below), whose sum is σ = 38398752. Its totient is φ = 8358144.

The previous prime is 19242017. The next prime is 19242029. The reversal of 19242028 is 82024291.

It is a junction number, because it is equal to n+sod(n) for n = 19241987 and 19242005.

It is not an unprimeable number, because it can be changed into a prime (19242029) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10000 + ... + 11767.

It is an arithmetic number, because the mean of its divisors is an integer number (1599948).

Almost surely, 2^19242028 is an apocalyptic number.

It is an amenable number.

19242028 is a deficient number, since it is larger than the sum of its proper divisors (19156724).

19242028 is a wasteful number, since it uses less digits than its factorization.

19242028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21801 (or 21799 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 19242028 is about 4386.5736059024. The cubic root of 19242028 is about 267.9684190900.

The spelling of 19242028 in words is "nineteen million, two hundred forty-two thousand, twenty-eight".