361868172 has 24 divisors (see below), whose sum is σ = 844680816. Its totient is φ = 120576768.

The previous prime is 361868161. The next prime is 361868179. The reversal of 361868172 is 271868163.

It is not an unprimeable number, because it can be changed into a prime (361868179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44968 + ... + 52400.

It is an arithmetic number, because the mean of its divisors is an integer number (35195034).

Almost surely, 2^361868172 is an apocalyptic number.

It is an amenable number.

361868172 is an abundant number, since it is smaller than the sum of its proper divisors (482812644).

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

361868172 is a wasteful number, since it uses less digits than its factorization.

361868172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11497 (or 11495 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 361868172 is about 19022.8329120560. The cubic root of 361868172 is about 712.6070733513.

Subtracting from 361868172 its reverse (271868163), we obtain a palindrome (90000009).

The spelling of 361868172 in words is "three hundred sixty-one million, eight hundred sixty-eight thousand, one hundred seventy-two".