440043030 has 120 divisors (see below), whose sum is σ = 1376530848. Its totient is φ = 100572192.

The previous prime is 440043029. The next prime is 440043049. The reversal of 440043030 is 30340044.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 440042994 and 440043012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 34147 + ... + 45233.

Almost surely, 2^440043030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440043030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (688265424).

440043030 is an abundant number, since it is smaller than the sum of its proper divisors (936487818).

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

440043030 is a wasteful number, since it uses less digits than its factorization.

440043030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11120 (or 11104 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 440043030 is about 20977.2026257077. The cubic root of 440043030 is about 760.6152854417.

Adding to 440043030 its reverse (30340044), we get a palindrome (470383074).

The spelling of 440043030 in words is "four hundred forty million, forty-three thousand, thirty".