1393221074280 has 512 divisors, whose sum is σ = 5096671580160. Its totient is φ = 297420963840.

The previous prime is 1393221074243. The next prime is 1393221074309. The reversal of 1393221074280 is 824701223931.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2039854819 + ... + 2039855501.

It is an arithmetic number, because the mean of its divisors is an integer number (9954436680).

Almost surely, 2^{1393221074280} is an apocalyptic number.

1393221074280 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 1393221074280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2548335790080).

1393221074280 is an abundant number, since it is smaller than the sum of its proper divisors (3703450505880).

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

1393221074280 is a wasteful number, since it uses less digits than its factorization.

1393221074280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609 (or 1605 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 1393221074280 in words is "one trillion, three hundred ninety-three billion, two hundred twenty-one million, seventy-four thousand, two hundred eighty".