4480020 has 36 divisors (see below), whose sum is σ = 13589940. Its totient is φ = 1194624.

The previous prime is 4480013. The next prime is 4480031. The reversal of 4480020 is 200844.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 535824 + 3944196 = 732^2 + 1986^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4479975 and 4480002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12265 + ... + 12624.

Almost surely, 2^4480020 is an apocalyptic number.

It is an amenable number.

4480020 is an abundant number, since it is smaller than the sum of its proper divisors (9109920).

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

4480020 is a wasteful number, since it uses less digits than its factorization.

4480020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24904 (or 24899 counting only the distinct ones).

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

The square root of 4480020 is about 2116.6057734023. The cubic root of 4480020 is about 164.8516573066.

Adding to 4480020 its reverse (200844), we get a palindrome (4680864).

The spelling of 4480020 in words is "four million, four hundred eighty thousand, twenty".