395504025280 has 448 divisors, whose sum is σ = 1199305094400. Its totient is φ = 123423326208.

The previous prime is 395504025277. The next prime is 395504025311. The reversal of 395504025280 is 82520405593.

It is a tau number, because it is divible by the number of its divisors (448).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 104160342 + ... + 104164138.

It is an arithmetic number, because the mean of its divisors is an integer number (2677020300).

Almost surely, 2^395504025280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 395504025280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (599652547200).

395504025280 is an abundant number, since it is smaller than the sum of its proper divisors (803801069120).

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

395504025280 is a wasteful number, since it uses less digits than its factorization.

395504025280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3921 (or 3897 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 395504025280 in words is "three hundred ninety-five billion, five hundred four million, twenty-five thousand, two hundred eighty".