38749240832 has 80 divisors (see below), whose sum is σ = 81618950160. Its totient is φ = 18327601152.

The previous prime is 38749240771. The next prime is 38749240861. The reversal of 38749240832 is 23804294783.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7517168 + ... + 7522320.

It is an arithmetic number, because the mean of its divisors is an integer number (1020236877).

Almost surely, 2^38749240832 is an apocalyptic number.

38749240832 is a gapful number since it is divisible by the number (32) 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 38749240832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40809475080).

38749240832 is an abundant number, since it is smaller than the sum of its proper divisors (42869709328).

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

38749240832 is an equidigital number, since it uses as much as digits as its factorization.

38749240832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5963 (or 5947 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 50.

The spelling of 38749240832 in words is "thirty-eight billion, seven hundred forty-nine million, two hundred forty thousand, eight hundred thirty-two".