19104464240 has 80 divisors (see below), whose sum is σ = 47844366336. Its totient is φ = 7073721600.

The previous prime is 19104464237. The next prime is 19104464257. The reversal of 19104464240 is 4246440191.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 19104464240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110426 + ... + 224505.

Almost surely, 2^19104464240 is an apocalyptic number.

19104464240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19104464240 is an abundant number, since it is smaller than the sum of its proper divisors (28739902096).

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

19104464240 is a wasteful number, since it uses less digits than its factorization.

19104464240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334998 (or 334992 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 19104464240 in words is "nineteen billion, one hundred four million, four hundred sixty-four thousand, two hundred forty".