4000448 has 14 divisors (see below), whose sum is σ = 7938516. Its totient is φ = 2000192.

The previous prime is 4000439. The next prime is 4000489. The reversal of 4000448 is 8440004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31190 + ... + 31317.

Almost surely, 2^4000448 is an apocalyptic number.

It is an amenable number.

4000448 is a deficient number, since it is larger than the sum of its proper divisors (3938068).

4000448 is an equidigital number, since it uses as much as digits as its factorization.

4000448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62519 (or 62509 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 4000448 is about 2000.1119968642. Note that the first 3 decimals coincide. The cubic root of 4000448 is about 158.7460312728.

The spelling of 4000448 in words is "four million, four hundred forty-eight", and thus it is an aban number.