863841426 has 32 divisors (see below), whose sum is σ = 1976400000. Its totient is φ = 246573696.

The previous prime is 863841421. The next prime is 863841437. The reversal of 863841426 is 624148368.

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

It is not an unprimeable number, because it can be changed into a prime (863841421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36700 + ... + 55448.

It is an arithmetic number, because the mean of its divisors is an integer number (61762500).

Almost surely, 2^863841426 is an apocalyptic number.

863841426 is an abundant number, since it is smaller than the sum of its proper divisors (1112558574).

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

863841426 is a wasteful number, since it uses less digits than its factorization.

863841426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19858.

The product of its digits is 221184, while the sum is 42.

The square root of 863841426 is about 29391.1793911030. The cubic root of 863841426 is about 952.3823589736.

The spelling of 863841426 in words is "eight hundred sixty-three million, eight hundred forty-one thousand, four hundred twenty-six".