4438791408 has 20 divisors (see below), whose sum is σ = 11466877928. Its totient is φ = 1479597120.

The previous prime is 4438791403. The next prime is 4438791421. The reversal of 4438791408 is 8041978344.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its 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: 92474821 = 4438791408 / (4 + 4 + 3 + 8 + 7 + 9 + 1 + 4 + 0 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4438791403) 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, 46237363 + ... + 46237458.

Almost surely, 2^4438791408 is an apocalyptic number.

4438791408 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4438791408 is an abundant number, since it is smaller than the sum of its proper divisors (7028086520).

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

4438791408 is a wasteful number, since it uses less digits than its factorization.

4438791408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92474832 (or 92474826 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The square root of 4438791408 is about 66624.2554029687. The cubic root of 4438791408 is about 1643.4440077950. Note that the first 3 decimals are identical.

The spelling of 4438791408 in words is "four billion, four hundred thirty-eight million, seven hundred ninety-one thousand, four hundred eight".