4400420 has 12 divisors (see below), whose sum is σ = 9240924. Its totient is φ = 1760160.

The previous prime is 4400413. The next prime is 4400443. The reversal of 4400420 is 240044.

It can be written as a sum of positive squares in 2 ways, for example, as 2534464 + 1865956 = 1592^2 + 1366^2 .

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 4400395 and 4400404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109991 + ... + 110030.

It is an arithmetic number, because the mean of its divisors is an integer number (770077).

Almost surely, 2^4400420 is an apocalyptic number.

It is an amenable number.

4400420 is an abundant number, since it is smaller than the sum of its proper divisors (4840504).

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

4400420 is a wasteful number, since it uses less digits than its factorization.

4400420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220030 (or 220028 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 4400420 is about 2097.7178075232. The cubic root of 4400420 is about 163.8694678169.

Adding to 4400420 its reverse (240044), we get a palindrome (4640464).

The spelling of 4400420 in words is "four million, four hundred thousand, four hundred twenty".