864444468 has 24 divisors (see below), whose sum is σ = 2071552672. Its totient is φ = 280360224.

The previous prime is 864444461. The next prime is 864444473.

It is a happy number.

864444468 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864444461) 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, 973030 + ... + 973917.

Almost surely, 2^864444468 is an apocalyptic number.

It is an amenable number.

864444468 is an abundant number, since it is smaller than the sum of its proper divisors (1207108204).

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

864444468 is a wasteful number, since it uses less digits than its factorization.

864444468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946991 (or 1946989 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 48.

The square root of 864444468 is about 29401.4364955184. The cubic root of 864444468 is about 952.6039247041.

The spelling of 864444468 in words is "eight hundred sixty-four million, four hundred forty-four thousand, four hundred sixty-eight".