38915500 has 48 divisors (see below), whose sum is σ = 91544544. Its totient is φ = 14366400.

The previous prime is 38915491. The next prime is 38915521. The reversal of 38915500 is 551983.

38915500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×38915500² = 3028832280500000, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 3507 + ... + 9493.

It is an arithmetic number, because the mean of its divisors is an integer number (1907178).

Almost surely, 2^38915500 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 38915500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45772272).

38915500 is an abundant number, since it is smaller than the sum of its proper divisors (52629044).

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

38915500 is a wasteful number, since it uses less digits than its factorization.

38915500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6019 (or 6007 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 38915500 is about 6238.2289153252. The cubic root of 38915500 is about 338.8760463745.

The spelling of 38915500 in words is "thirty-eight million, nine hundred fifteen thousand, five hundred".