38505830 has 40 divisors (see below), whose sum is σ = 76530960. Its totient is φ = 13948880.

The previous prime is 38505827. The next prime is 38505851. The reversal of 38505830 is 3850583.

38505830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 146279 + ... + 146541.

It is an arithmetic number, because the mean of its divisors is an integer number (1913274).

Almost surely, 2^38505830 is an apocalyptic number.

38505830 is a deficient number, since it is larger than the sum of its proper divisors (38025130).

38505830 is an equidigital number, since it uses as much as digits as its factorization.

38505830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 38505830 is about 6205.3065999997. The cubic root of 38505830 is about 337.6827140512.

The spelling of 38505830 in words is "thirty-eight million, five hundred five thousand, eight hundred thirty".