4408020 has 72 divisors (see below), whose sum is σ = 13881504. Its totient is φ = 1174176.

The previous prime is 4408007. The next prime is 4408031. The reversal of 4408020 is 208044.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 4407984 and 4408002.

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, 4407 + ... + 5313.

Almost surely, 2^4408020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4408020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6940752).

4408020 is an abundant number, since it is smaller than the sum of its proper divisors (9473484).

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

4408020 is a wasteful number, since it uses less digits than its factorization.

4408020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931 (or 917 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 4408020 is about 2099.5285185012. The cubic root of 4408020 is about 163.9637536394.

It can be divided in two parts, 44080 and 20, that added together give a square (44100 = 210²).

The spelling of 4408020 in words is "four million, four hundred eight thousand, twenty".