399271006170 has 96 divisors (see below), whose sum is σ = 1079466944400. Its totient is φ = 102268035072.

The previous prime is 399271006163. The next prime is 399271006171. The reversal of 399271006170 is 71600172993.

399271006170 is a `hidden beast` number, since 3 + 9 + 9 + 27 + 1 + 0 + 0 + 617 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 267238336401 + 132032669769 = 516951^2 + 363363^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (399271006171) 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, 107416 + ... + 900044.

Almost surely, 2^399271006170 is an apocalyptic number.

399271006170 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 399271006170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539733472200).

399271006170 is an abundant number, since it is smaller than the sum of its proper divisors (680195938230).

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

399271006170 is a wasteful number, since it uses less digits than its factorization.

399271006170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792864 (or 792861 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The spelling of 399271006170 in words is "three hundred ninety-nine billion, two hundred seventy-one million, six thousand, one hundred seventy".