19228684800 has 360 divisors, whose sum is σ = 68806047024. Its totient is φ = 4731617280.

The previous prime is 19228684799. The next prime is 19228684807. The reversal of 19228684800 is 848682291.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 19228684800.

It is not an unprimeable number, because it can be changed into a prime (19228684807) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6488119 + ... + 6491081.

Almost surely, 2^19228684800 is an apocalyptic number.

19228684800 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 19228684800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34403023512).

19228684800 is an abundant number, since it is smaller than the sum of its proper divisors (49577362224).

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

19228684800 is a wasteful number, since it uses less digits than its factorization.

19228684800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3020 (or 2986 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 19228684800 in words is "nineteen billion, two hundred twenty-eight million, six hundred eighty-four thousand, eight hundred".