863842182 has 128 divisors (see below), whose sum is σ = 2261468160. Its totient is φ = 213995520.

The previous prime is 863842181. The next prime is 863842237. The reversal of 863842182 is 281248368.

It is a happy number.

It is a super-2 number, since 2×863842182² = 1492446630805042248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863842181) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 501082 + ... + 502802.

It is an arithmetic number, because the mean of its divisors is an integer number (17667720).

Almost surely, 2^863842182 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 863842182, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1130734080).

863842182 is an abundant number, since it is smaller than the sum of its proper divisors (1397625978).

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

863842182 is a wasteful number, since it uses less digits than its factorization.

863842182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806.

The product of its digits is 147456, while the sum is 42.

The square root of 863842182 is about 29391.1922521016. The cubic root of 863842182 is about 952.3826368027.

The spelling of 863842182 in words is "eight hundred sixty-three million, eight hundred forty-two thousand, one hundred eighty-two".