38857481424 has 120 divisors (see below), whose sum is σ = 110899152000. Its totient is φ = 12698671104.

The previous prime is 38857481423. The next prime is 38857481447. The reversal of 38857481424 is 42418475883.

38857481424 is a `hidden beast` number, since 38 + 8 + 574 + 8 + 14 + 24 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38857481423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1481577 + ... + 1507575.

It is an arithmetic number, because the mean of its divisors is an integer number (924159600).

Almost surely, 2^38857481424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38857481424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55449576000).

38857481424 is an abundant number, since it is smaller than the sum of its proper divisors (72041670576).

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

38857481424 is a wasteful number, since it uses less digits than its factorization.

38857481424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26217 (or 26208 counting only the distinct ones).

The product of its digits is 6881280, while the sum is 54.

The spelling of 38857481424 in words is "thirty-eight billion, eight hundred fifty-seven million, four hundred eighty-one thousand, four hundred twenty-four".