384168445 has 4 divisors (see below), whose sum is σ = 461002140. Its totient is φ = 307334752.

The previous prime is 384168443. The next prime is 384168457. The reversal of 384168445 is 544861483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544861483 = 29 ⋅18788327.

It can be written as a sum of positive squares in 2 ways, for example, as 304083844 + 80084601 = 17438^2 + 8949^2 .

It is a cyclic number.

It is not a de Polignac number, because 384168445 - 2¹ = 384168443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384168443) 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, 38416840 + ... + 38416849.

It is an arithmetic number, because the mean of its divisors is an integer number (115250535).

Almost surely, 2^384168445 is an apocalyptic number.

It is an amenable number.

384168445 is a deficient number, since it is larger than the sum of its proper divisors (76833695).

384168445 is an equidigital number, since it uses as much as digits as its factorization.

384168445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76833694.

The product of its digits is 368640, while the sum is 43.

The square root of 384168445 is about 19600.2154324895. The cubic root of 384168445 is about 726.9545010681.

The spelling of 384168445 in words is "three hundred eighty-four million, one hundred sixty-eight thousand, four hundred forty-five".