4097440168 has 8 divisors (see below), whose sum is σ = 7682700330. Its totient is φ = 2048720080.

The previous prime is 4097440163. The next prime is 4097440187. The reversal of 4097440168 is 8610447904.

It can be written as a sum of positive squares in only one way, i.e., 2883475204 + 1213964964 = 53698^2 + 34842^2 .

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

It is not an unprimeable number, because it can be changed into a prime (4097440163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256090003 + ... + 256090018.

Almost surely, 2^4097440168 is an apocalyptic number.

It is an amenable number.

4097440168 is a deficient number, since it is larger than the sum of its proper divisors (3585260162).

4097440168 is a wasteful number, since it uses less digits than its factorization.

4097440168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512180027 (or 512180023 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 4097440168 is about 64011.2503236736. The cubic root of 4097440168 is about 1600.1874999015.

The spelling of 4097440168 in words is "four billion, ninety-seven million, four hundred forty thousand, one hundred sixty-eight".