19389042 has 24 divisors (see below), whose sum is σ = 42406416. Its totient is φ = 6401976.

The previous prime is 19389037. The next prime is 19389047. The reversal of 19389042 is 24098391.

It is an interprime number because it is at equal distance from previous prime (19389037) and next prime (19389047).

It is a junction number, because it is equal to n+sod(n) for n = 19388988 and 19389006.

It is not an unprimeable number, because it can be changed into a prime (19389047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3108 + ... + 6959.

It is an arithmetic number, because the mean of its divisors is an integer number (1766934).

Almost surely, 2^19389042 is an apocalyptic number.

19389042 is an abundant number, since it is smaller than the sum of its proper divisors (23017374).

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

19389042 is a wasteful number, since it uses less digits than its factorization.

19389042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10182 (or 10179 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 19389042 is about 4403.2989905297. The cubic root of 19389042 is about 268.6491374167.

The spelling of 19389042 in words is "nineteen million, three hundred eighty-nine thousand, forty-two".