4400730 has 48 divisors (see below), whose sum is σ = 11872224. Its totient is φ = 1172880.

The previous prime is 4400719. The next prime is 4400731. The reversal of 4400730 is 370044.

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

It is not an unprimeable number, because it can be changed into a prime (4400731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1525 + ... + 3335.

It is an arithmetic number, because the mean of its divisors is an integer number (247338).

Almost surely, 2^4400730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4400730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5936112).

4400730 is an abundant number, since it is smaller than the sum of its proper divisors (7471494).

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

4400730 is a wasteful number, since it uses less digits than its factorization.

4400730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833 (or 1821 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 4400730 is about 2097.7916960461. The cubic root of 4400730 is about 163.8733158088.

Adding to 4400730 its reverse (370044), we get a palindrome (4770774).

The spelling of 4400730 in words is "four million, four hundred thousand, seven hundred thirty".