1399200798240 has 288 divisors, whose sum is σ = 5499855728640. Its totient is φ = 317298788352.

The previous prime is 1399200798197. The next prime is 1399200798241. The reversal of 1399200798240 is 428970029931.

1399200798240 is a `hidden beast` number, since 1 + 399 + 2 + 0 + 0 + 7 + 9 + 8 + 240 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is not an unprimeable number, because it can be changed into a prime (1399200798241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 733666 + ... + 1826654.

It is an arithmetic number, because the mean of its divisors is an integer number (19096721280).

Almost surely, 2^{1399200798240} is an apocalyptic number.

1399200798240 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 1399200798240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2749927864320).

1399200798240 is an abundant number, since it is smaller than the sum of its proper divisors (4100654930400).

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

1399200798240 is a wasteful number, since it uses less digits than its factorization.

1399200798240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093144 (or 1093133 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 1399200798240 in words is "one trillion, three hundred ninety-nine billion, two hundred million, seven hundred ninety-eight thousand, two hundred forty".