4400728434 has 64 divisors (see below), whose sum is σ = 10313049600. Its totient is φ = 1387146384.

The previous prime is 4400728427. The next prime is 4400728439. The reversal of 4400728434 is 4348270044.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4400728439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 598609 + ... + 605915.

It is an arithmetic number, because the mean of its divisors is an integer number (161141400).

Almost surely, 2^4400728434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4400728434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5156524800).

4400728434 is an abundant number, since it is smaller than the sum of its proper divisors (5912321166).

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

4400728434 is a wasteful number, since it uses less digits than its factorization.

4400728434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7924 (or 7918 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 36.

The square root of 4400728434 is about 66337.9863577423. The cubic root of 4400728434 is about 1638.7329637071.

Adding to 4400728434 its reverse (4348270044), we get a palindrome (8748998478).

The spelling of 4400728434 in words is "four billion, four hundred million, seven hundred twenty-eight thousand, four hundred thirty-four".