4000448488 has 8 divisors (see below), whose sum is σ = 7500840930. Its totient is φ = 2000224240.

The previous prime is 4000448477. The next prime is 4000448497. The reversal of 4000448488 is 8848440004.

It can be written as a sum of positive squares in only one way, i.e., 3417805444 + 582643044 = 58462^2 + 24138^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×4000448488² = 32007176210282972288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4000448488.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250028023 + ... + 250028038.

Almost surely, 2^4000448488 is an apocalyptic number.

It is an amenable number.

4000448488 is a deficient number, since it is larger than the sum of its proper divisors (3500392442).

4000448488 is a wasteful number, since it uses less digits than its factorization.

4000448488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500056067 (or 500056063 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 40.

The square root of 4000448488 is about 63249.0987129461. The cubic root of 4000448488 is about 1587.4603772779.

The spelling of 4000448488 in words is "four billion, four hundred forty-eight thousand, four hundred eighty-eight".