38159980 has 48 divisors (see below), whose sum is σ = 85085280. Its totient is φ = 14335488.

The previous prime is 38159959. The next prime is 38159981. The reversal of 38159980 is 8995183.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (38159981) 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, 51694 + ... + 52426.

It is an arithmetic number, because the mean of its divisors is an integer number (1772610).

Almost surely, 2^38159980 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 38159980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42542640).

38159980 is an abundant number, since it is smaller than the sum of its proper divisors (46925300).

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

38159980 is a wasteful number, since it uses less digits than its factorization.

38159980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 38159980 is about 6177.3764657822. The cubic root of 38159980 is about 336.6686773508.

The spelling of 38159980 in words is "thirty-eight million, one hundred fifty-nine thousand, nine hundred eighty".