38919500 has 24 divisors (see below), whose sum is σ = 85001280. Its totient is φ = 15567600.

The previous prime is 38919493. The next prime is 38919509. The reversal of 38919500 is 591983.

38919500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (38919509) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 38420 + ... + 39419.

It is an arithmetic number, because the mean of its divisors is an integer number (3541720).

Almost surely, 2^38919500 is an apocalyptic number.

It is an amenable number.

38919500 is an abundant number, since it is smaller than the sum of its proper divisors (46081780).

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

38919500 is a wasteful number, since it uses less digits than its factorization.

38919500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77858 (or 77846 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 38919500 is about 6238.5495109040. The cubic root of 38919500 is about 338.8876566390.

The spelling of 38919500 in words is "thirty-eight million, nine hundred nineteen thousand, five hundred".