19240655200 has 144 divisors (see below), whose sum is σ = 51443426160. Its totient is φ = 6983608320.

The previous prime is 19240655191. The next prime is 19240655227. The reversal of 19240655200 is 255604291.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 597922 + ... + 629278.

It is an arithmetic number, because the mean of its divisors is an integer number (357246015).

Almost surely, 2^19240655200 is an apocalyptic number.

19240655200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19240655200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25721713080).

19240655200 is an abundant number, since it is smaller than the sum of its proper divisors (32202770960).

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

19240655200 is a wasteful number, since it uses less digits than its factorization.

19240655200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31449 (or 31436 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 19240655200 in words is "nineteen billion, two hundred forty million, six hundred fifty-five thousand, two hundred".