38704820 has 96 divisors (see below), whose sum is σ = 103977216. Its totient is φ = 11750400.

The previous prime is 38704811. The next prime is 38704847. The reversal of 38704820 is 2840783.

38704820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 62834 + ... + 63446.

It is an arithmetic number, because the mean of its divisors is an integer number (1083096).

Almost surely, 2^38704820 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 38704820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51988608).

38704820 is an abundant number, since it is smaller than the sum of its proper divisors (65272396).

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

38704820 is a wasteful number, since it uses less digits than its factorization.

38704820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681 (or 679 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 38704820 is about 6221.3197956704. The cubic root of 38704820 is about 338.2634058906.

The spelling of 38704820 in words is "thirty-eight million, seven hundred four thousand, eight hundred twenty".