445857168 has 20 divisors (see below), whose sum is σ = 1151797808. Its totient is φ = 148619040.

The previous prime is 445857163. The next prime is 445857179. The reversal of 445857168 is 861758544.

It is a super-2 number, since 2×445857168² = 397577228513960448, which contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 9288691 = 445857168 / (4 + 4 + 5 + 8 + 5 + 7 + 1 + 6 + 8).

It is not an unprimeable number, because it can be changed into a prime (445857163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4644298 + ... + 4644393.

Almost surely, 2^445857168 is an apocalyptic number.

445857168 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

445857168 is an abundant number, since it is smaller than the sum of its proper divisors (705940640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445857168 is a wasteful number, since it uses less digits than its factorization.

445857168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9288702 (or 9288696 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 48.

The square root of 445857168 is about 21115.3301655456. The cubic root of 445857168 is about 763.9505555385.

The spelling of 445857168 in words is "four hundred forty-five million, eight hundred fifty-seven thousand, one hundred sixty-eight".