38866560 has 128 divisors (see below), whose sum is σ = 128079360. Its totient is φ = 10014720.

The previous prime is 38866559. The next prime is 38866579. The reversal of 38866560 is 6566883.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59194 + ... + 59846.

It is an arithmetic number, because the mean of its divisors is an integer number (1000620).

Almost surely, 2^38866560 is an apocalyptic number.

38866560 is a gapful number since it is divisible by the number (30) 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 38866560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64039680).

38866560 is an abundant number, since it is smaller than the sum of its proper divisors (89212800).

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

38866560 is a wasteful number, since it uses less digits than its factorization.

38866560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 38866560 is about 6234.3050935930. The cubic root of 38866560 is about 338.7339303298.

The spelling of 38866560 in words is "thirty-eight million, eight hundred sixty-six thousand, five hundred sixty".