43378872320 has 104 divisors (see below), whose sum is σ = 118967918784. Its totient is φ = 14872707072.

The previous prime is 43378872259. The next prime is 43378872323. The reversal of 43378872320 is 2327887334.

It is not an unprimeable number, because it can be changed into a prime (43378872323) 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, 7934 + ... + 294653.

It is an arithmetic number, because the mean of its divisors is an integer number (1143922296).

Almost surely, 2^43378872320 is an apocalyptic number.

43378872320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43378872320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59483959392).

43378872320 is an abundant number, since it is smaller than the sum of its proper divisors (75589046464).

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

43378872320 is an equidigital number, since it uses as much as digits as its factorization.

43378872320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302623 (or 302601 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 47.

The spelling of 43378872320 in words is "forty-three billion, three hundred seventy-eight million, eight hundred seventy-two thousand, three hundred twenty".