4420144 has 20 divisors (see below), whose sum is σ = 8608824. Its totient is φ = 2198528.

The previous prime is 4420139. The next prime is 4420159. The reversal of 4420144 is 4410244.

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, 3024 + ... + 4240.

Almost surely, 2^4420144 is an apocalyptic number.

It is an amenable number.

4420144 is a deficient number, since it is larger than the sum of its proper divisors (4188680).

4420144 is a wasteful number, since it uses less digits than its factorization.

4420144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452 (or 1446 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 4420144 is about 2102.4138507915. The cubic root of 4420144 is about 164.1139402537.

Adding to 4420144 its reverse (4410244), we get a palindrome (8830388).

The spelling of 4420144 in words is "four million, four hundred twenty thousand, one hundred forty-four".