440023148168 has 8 divisors (see below), whose sum is σ = 825043402830. Its totient is φ = 220011574080.

The previous prime is 440023148137. The next prime is 440023148209. The reversal of 440023148168 is 861841320044.

It can be written as a sum of positive squares in only one way, i.e., 248723633284 + 191299514884 = 498722^2 + 437378^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27501446753 + ... + 27501446768.

Almost surely, 2^440023148168 is an apocalyptic number.

It is an amenable number.

440023148168 is a deficient number, since it is larger than the sum of its proper divisors (385020254662).

440023148168 is a wasteful number, since it uses less digits than its factorization.

440023148168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55002893527 (or 55002893523 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 41.

The spelling of 440023148168 in words is "four hundred forty billion, twenty-three million, one hundred forty-eight thousand, one hundred sixty-eight".