38721376 has 72 divisors (see below), whose sum is σ = 83553120. Its totient is φ = 17651712.

The previous prime is 38721349. The next prime is 38721391. The reversal of 38721376 is 67312783.

38721376 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 490105 + ... + 490183.

It is an arithmetic number, because the mean of its divisors is an integer number (1160460).

Almost surely, 2^38721376 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 38721376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41776560).

38721376 is an abundant number, since it is smaller than the sum of its proper divisors (44831744).

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

38721376 is a wasteful number, since it uses less digits than its factorization.

38721376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 151 counting only the distinct ones).

The product of its digits is 42336, while the sum is 37.

The square root of 38721376 is about 6222.6502392469. The cubic root of 38721376 is about 338.3116297779.

The spelling of 38721376 in words is "thirty-eight million, seven hundred twenty-one thousand, three hundred seventy-six".