4401920 has 72 divisors (see below), whose sum is σ = 11160240. Its totient is φ = 1658880.

The previous prime is 4401919. The next prime is 4401923. The reversal of 4401920 is 291044.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4401892 and 4401901.

It is not an unprimeable number, because it can be changed into a prime (4401923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24230 + ... + 24410.

Almost surely, 2^4401920 is an apocalyptic number.

4401920 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 4401920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5580120).

4401920 is an abundant number, since it is smaller than the sum of its proper divisors (6758320).

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

4401920 is a wasteful number, since it uses less digits than its factorization.

4401920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 4401920 is about 2098.0753084673. The cubic root of 4401920 is about 163.8880854547. Note that the first 3 decimals are identical.

Adding to 4401920 its reverse (291044), we get a palindrome (4692964).

The spelling of 4401920 in words is "four million, four hundred one thousand, nine hundred twenty".