440026842663828 has 36 divisors (see below), whose sum is σ = 1271188656585120. Its totient is φ = 125721955046736.

The previous prime is 440026842663823. The next prime is 440026842663839. The reversal of 440026842663828 is 828366248620044.

440026842663828 is a `hidden beast` number, since 440 + 0 + 2 + 6 + 84 + 2 + 66 + 38 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×440026842663828² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440026842663823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 873069132018 + ... + 873069132521.

Almost surely, 2^{440026842663828} is an apocalyptic number.

It is an amenable number.

440026842663828 is an abundant number, since it is smaller than the sum of its proper divisors (831161813921292).

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

440026842663828 is a wasteful number, since it uses less digits than its factorization.

440026842663828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746138264556 (or 1746138264551 counting only the distinct ones).

The product of its (nonzero) digits is 169869312, while the sum is 63.

The spelling of 440026842663828 in words is "four hundred forty trillion, twenty-six billion, eight hundred forty-two million, six hundred sixty-three thousand, eight hundred twenty-eight".