396809058880 has 224 divisors, whose sum is σ = 1031082597216. Its totient is φ = 144580018176.

The previous prime is 396809058859. The next prime is 396809058887. The reversal of 396809058880 is 88850908693.

It can be written as a sum of positive squares in 16 ways, for example, as 125276355136 + 271532703744 = 353944^2 + 521088^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

It is not an unprimeable number, because it can be changed into a prime (396809058887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160196202 + ... + 160198678.

It is an arithmetic number, because the mean of its divisors is an integer number (4603047309).

Almost surely, 2^396809058880 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 396809058880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515541298608).

396809058880 is an abundant number, since it is smaller than the sum of its proper divisors (634273538336).

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

396809058880 is a wasteful number, since it uses less digits than its factorization.

396809058880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001 (or 2991 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 64.

The spelling of 396809058880 in words is "three hundred ninety-six billion, eight hundred nine million, fifty-eight thousand, eight hundred eighty".