4404840 has 128 divisors (see below), whose sum is σ = 14929920. Its totient is φ = 1030400.

The previous prime is 4404833. The next prime is 4404847. The reversal of 4404840 is 484044.

It is an interprime number because it is at equal distance from previous prime (4404833) and next prime (4404847).

It is a Harshad number since it is a multiple of its sum of digits (24).

4404840 is a modest number, since divided by 4840 gives 440 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 4404840.

It is not an unprimeable number, because it can be changed into a prime (4404847) 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, 62005 + ... + 62075.

It is an arithmetic number, because the mean of its divisors is an integer number (116640).

Almost surely, 2^4404840 is an apocalyptic number.

4404840 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 4404840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7464960).

4404840 is an abundant number, since it is smaller than the sum of its proper divisors (10525080).

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

4404840 is a wasteful number, since it uses less digits than its factorization.

4404840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 4404840 is about 2098.7710689830. The cubic root of 4404840 is about 163.9243156628.

Adding to 4404840 its reverse (484044), we get a palindrome (4888884).

The spelling of 4404840 in words is "four million, four hundred four thousand, eight hundred forty".