170838348420 has 96 divisors (see below), whose sum is σ = 491551554816. Its totient is φ = 44300736000.

The previous prime is 170838348413. The next prime is 170838348449. The reversal of 170838348420 is 24843838071.

It is a self number, because there is not a number n which added to its sum of digits gives 170838348420.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4110745 + ... + 4152095.

It is an arithmetic number, because the mean of its divisors is an integer number (5120328696).

Almost surely, 2^170838348420 is an apocalyptic number.

170838348420 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 170838348420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245775777408).

170838348420 is an abundant number, since it is smaller than the sum of its proper divisors (320713206396).

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

170838348420 is a wasteful number, since it uses less digits than its factorization.

170838348420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43261 (or 43259 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 48.

The spelling of 170838348420 in words is "one hundred seventy billion, eight hundred thirty-eight million, three hundred forty-eight thousand, four hundred twenty".