19138104 has 24 divisors (see below), whose sum is σ = 51832560. Its totient is φ = 6379344.

The previous prime is 19138099. The next prime is 19138109. The reversal of 19138104 is 40183191.

It is an interprime number because it is at equal distance from previous prime (19138099) and next prime (19138109).

It is a tau number, because it is divible by the number of its divisors (24).

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19138109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132832 + ... + 132975.

It is an arithmetic number, because the mean of its divisors is an integer number (2159690).

Almost surely, 2^19138104 is an apocalyptic number.

It is an amenable number.

19138104 is an abundant number, since it is smaller than the sum of its proper divisors (32694456).

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

19138104 is a wasteful number, since it uses less digits than its factorization.

19138104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265819 (or 265812 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 19138104 is about 4374.7118762268. The cubic root of 19138104 is about 267.4851256760.

The spelling of 19138104 in words is "nineteen million, one hundred thirty-eight thousand, one hundred four".