2378448321 has 8 divisors (see below), whose sum is σ = 3194079840. Its totient is φ = 1574224512.

The previous prime is 2378448287. The next prime is 2378448361. The reversal of 2378448321 is 1238448732.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2378448321 - 2¹⁵ = 2378415553 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2378448361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2851440 + ... + 2852273.

It is an arithmetic number, because the mean of its divisors is an integer number (399259980).

Almost surely, 2^2378448321 is an apocalyptic number.

It is an amenable number.

2378448321 is a deficient number, since it is larger than the sum of its proper divisors (815631519).

2378448321 is a wasteful number, since it uses less digits than its factorization.

2378448321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5703855.

The product of its digits is 258048, while the sum is 42.

The square root of 2378448321 is about 48769.3379184093. The cubic root of 2378448321 is about 1334.8462317808.

The spelling of 2378448321 in words is "two billion, three hundred seventy-eight million, four hundred forty-eight thousand, three hundred twenty-one".