4438374978 has 16 divisors (see below), whose sum is σ = 8886134880. Its totient is φ = 1477894176.

The previous prime is 4438374953. The next prime is 4438374979. The reversal of 4438374978 is 8794738344.

It is not an unprimeable number, because it can be changed into a prime (4438374979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384883 + ... + 396246.

It is an arithmetic number, because the mean of its divisors is an integer number (555383430).

Almost surely, 2^4438374978 is an apocalyptic number.

4438374978 is an abundant number, since it is smaller than the sum of its proper divisors (4447759902).

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

4438374978 is a wasteful number, since it uses less digits than its factorization.

4438374978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782081.

The product of its digits is 16257024, while the sum is 57.

The square root of 4438374978 is about 66621.1301165028. The cubic root of 4438374978 is about 1643.3926123642.

The spelling of 4438374978 in words is "four billion, four hundred thirty-eight million, three hundred seventy-four thousand, nine hundred seventy-eight".