4450403440 has 120 divisors (see below), whose sum is σ = 12670238160. Its totient is φ = 1445520384.

The previous prime is 4450403417. The next prime is 4450403471. The reversal of 4450403440 is 443040544.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 4450403399 and 4450403408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44604 + ... + 104356.

It is an arithmetic number, because the mean of its divisors is an integer number (105585318).

Almost surely, 2^4450403440 is an apocalyptic number.

4450403440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4450403440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6335119080).

4450403440 is an abundant number, since it is smaller than the sum of its proper divisors (8219834720).

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

4450403440 is a wasteful number, since it uses less digits than its factorization.

4450403440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59799 (or 59786 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 4450403440 is about 66711.3441627434. The cubic root of 4450403440 is about 1644.8758620674.

Adding to 4450403440 its reverse (443040544), we get a palindrome (4893443984).

The spelling of 4450403440 in words is "four billion, four hundred fifty million, four hundred three thousand, four hundred forty".