38505500 has 48 divisors (see below), whose sum is σ = 91754208. Its totient is φ = 14000000.

The previous prime is 38505497. The next prime is 38505521. The reversal of 38505500 is 550583.

It is a self number, because there is not a number n which added to its sum of digits gives 38505500.

It is a congruent number.

It is an unprimeable number.

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, 2000 + ... + 9000.

It is an arithmetic number, because the mean of its divisors is an integer number (1911546).

Almost surely, 2^38505500 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 38505500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45877104).

38505500 is an abundant number, since it is smaller than the sum of its proper divisors (53248708).

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

38505500 is a wasteful number, since it uses less digits than its factorization.

38505500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7031 (or 7019 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 38505500 is about 6205.2800097981. The cubic root of 38505500 is about 337.6817493867.

The spelling of 38505500 in words is "thirty-eight million, five hundred five thousand, five hundred".