398830786170 has 64 divisors (see below), whose sum is σ = 991134385920. Its totient is φ = 102590627328.

The previous prime is 398830786153. The next prime is 398830786181. The reversal of 398830786170 is 71687038893.

It is a super-3 number, since 3×398830786170³ (a number of 36 digits) contains 333 as substring.

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, 709182 + ... + 1140438.

It is an arithmetic number, because the mean of its divisors is an integer number (15486474780).

Almost surely, 2^398830786170 is an apocalyptic number.

398830786170 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 398830786170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (495567192960).

398830786170 is an abundant number, since it is smaller than the sum of its proper divisors (592303599750).

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

398830786170 is a wasteful number, since it uses less digits than its factorization.

398830786170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432359.

The product of its (nonzero) digits is 12192768, while the sum is 60.

The spelling of 398830786170 in words is "three hundred ninety-eight billion, eight hundred thirty million, seven hundred eighty-six thousand, one hundred seventy".