19013104 has 40 divisors (see below), whose sum is σ = 40890240. Its totient is φ = 8491200.

The previous prime is 19013101. The next prime is 19013107. The reversal of 19013104 is 40131091.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (19013101) and next prime (19013107).

It is a super-2 number, since 2×19013104² = 722996247429632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19013101) 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, 9469 + ... + 11299.

It is an arithmetic number, because the mean of its divisors is an integer number (1022256).

Almost surely, 2^19013104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19013104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20445120).

19013104 is an abundant number, since it is smaller than the sum of its proper divisors (21877136).

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

19013104 is a wasteful number, since it uses less digits than its factorization.

19013104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909 (or 1903 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 19013104 is about 4360.4018163467. The cubic root of 19013104 is about 266.9014959242.

Adding to 19013104 its reverse (40131091), we get a palindrome (59144195).

It can be divided in two parts, 1901 and 3104, that added together give a palindrome (5005).

The spelling of 19013104 in words is "nineteen million, thirteen thousand, one hundred four".