398180672910 has 128 divisors (see below), whose sum is σ = 1115040936960. Its totient is φ = 100917767808.

The previous prime is 398180672881. The next prime is 398180672941. The reversal of 398180672910 is 19276081893.

398180672910 is a `hidden beast` number, since 398 + 180 + 6 + 72 + 9 + 1 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 770769 + ... + 1179171.

It is an arithmetic number, because the mean of its divisors is an integer number (8711257320).

Almost surely, 2^398180672910 is an apocalyptic number.

398180672910 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 398180672910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557520468480).

398180672910 is an abundant number, since it is smaller than the sum of its proper divisors (716860264050).

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

398180672910 is a wasteful number, since it uses less digits than its factorization.

398180672910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408599 (or 408593 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The spelling of 398180672910 in words is "three hundred ninety-eight billion, one hundred eighty million, six hundred seventy-two thousand, nine hundred ten".