398587301280 has 1728 divisors, whose sum is σ = 1797933376512. Its totient is φ = 82771476480.

The previous prime is 398587301279. The next prime is 398587301293. The reversal of 398587301280 is 82103785893.

398587301280 is a `hidden beast` number, since 3 + 9 + 8 + 58 + 7 + 301 + 280 = 666.

398587301280 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 1003998042 + ... + 1003998438.

It is an arithmetic number, because the mean of its divisors is an integer number (1040470704).

Almost surely, 2^398587301280 is an apocalyptic number.

398587301280 is a gapful number since it is divisible by the number (30) 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 398587301280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (898966688256).

398587301280 is an abundant number, since it is smaller than the sum of its proper divisors (1399346075232).

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

398587301280 is a wasteful number, since it uses less digits than its factorization.

398587301280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 398587301280 in words is "three hundred ninety-eight billion, five hundred eighty-seven million, three hundred one thousand, two hundred eighty".