440140448 has 48 divisors (see below), whose sum is σ = 952305984. Its totient is φ = 198581760.

The previous prime is 440140447. The next prime is 440140483. The reversal of 440140448 is 844041044.

It is a super-2 number, since 2×440140448² = 387447227931281408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 440140448.

It is not an unprimeable number, because it can be changed into a prime (440140447) 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, 43661 + ... + 52787.

It is an arithmetic number, because the mean of its divisors is an integer number (19839708).

Almost surely, 2^440140448 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 440140448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (476152992).

440140448 is an abundant number, since it is smaller than the sum of its proper divisors (512165536).

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

440140448 is a wasteful number, since it uses less digits than its factorization.

440140448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9285 (or 9277 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 29.

The square root of 440140448 is about 20979.5244941348. The cubic root of 440140448 is about 760.6714103716.

The spelling of 440140448 in words is "four hundred forty million, one hundred forty thousand, four hundred forty-eight".