440618912 has 36 divisors (see below), whose sum is σ = 906859170. Its totient is φ = 210722688.

The previous prime is 440618909. The next prime is 440618917. The reversal of 440618912 is 219816044.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 436141456 + 4477456 = 20884^2 + 2116^2 .

It is a super-2 number, since 2×440618912² = 388290051224127488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (440618917) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 3914 + ... + 29942.

Almost surely, 2^440618912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440618912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453429585).

440618912 is an abundant number, since it is smaller than the sum of its proper divisors (466240258).

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

440618912 is a wasteful number, since it uses less digits than its factorization.

440618912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26085 (or 26054 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 440618912 is about 20990.9245151327. The cubic root of 440618912 is about 760.9469452118.

The spelling of 440618912 in words is "four hundred forty million, six hundred eighteen thousand, nine hundred twelve".