19389044 has 48 divisors (see below), whose sum is σ = 38808000. Its totient is φ = 8418816.

The previous prime is 19389037. The next prime is 19389047. The reversal of 19389044 is 44098391.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 19388989 and 19389007.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 55382 + ... + 55730.

It is an arithmetic number, because the mean of its divisors is an integer number (808500).

Almost surely, 2^19389044 is an apocalyptic number.

It is an amenable number.

19389044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

19389044 is a wasteful number, since it uses less digits than its factorization.

19389044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 19389044 is about 4403.2992176322. The cubic root of 19389044 is about 268.6491466538.

The spelling of 19389044 in words is "nineteen million, three hundred eighty-nine thousand, forty-four".