457978168 has 32 divisors (see below), whose sum is σ = 875520000. Its totient is φ = 224546400.

The previous prime is 457978163. The next prime is 457978189. The reversal of 457978168 is 861879754.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457978163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93033 + ... + 97831.

It is an arithmetic number, because the mean of its divisors is an integer number (27360000).

Almost surely, 2^457978168 is an apocalyptic number.

It is an amenable number.

457978168 is a deficient number, since it is larger than the sum of its proper divisors (417541832).

457978168 is a wasteful number, since it uses less digits than its factorization.

457978168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5035 (or 5031 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 55.

The square root of 457978168 is about 21400.4244817714. The cubic root of 457978168 is about 770.8116297124.

The spelling of 457978168 in words is "four hundred fifty-seven million, nine hundred seventy-eight thousand, one hundred sixty-eight".