38716720 has 80 divisors (see below), whose sum is σ = 105136128. Its totient is φ = 12983040.

The previous prime is 38716709. The next prime is 38716729. The reversal of 38716720 is 2761783.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (38716729) 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 15 ways as a sum of consecutive naturals, for example, 25585 + ... + 27055.

Almost surely, 2^38716720 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 38716720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52568064).

38716720 is an abundant number, since it is smaller than the sum of its proper divisors (66419408).

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

38716720 is a wasteful number, since it uses less digits than its factorization.

38716720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538 (or 1532 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 38716720 is about 6222.2761108778. The cubic root of 38716720 is about 338.2980692914.

The spelling of 38716720 in words is "thirty-eight million, seven hundred sixteen thousand, seven hundred twenty".