38675646 has 48 divisors (see below), whose sum is σ = 89709984. Its totient is φ = 11999232.

The previous prime is 38675639. The next prime is 38675671. The reversal of 38675646 is 64657683.

38675646 is a `hidden beast` number, since 3 + 86 + 7 + 564 + 6 = 666.

38675646 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 23 ways as a sum of consecutive naturals, for example, 29031 + ... + 30333.

It is an arithmetic number, because the mean of its divisors is an integer number (1868958).

Almost surely, 2^38675646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38675646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44854992).

38675646 is an abundant number, since it is smaller than the sum of its proper divisors (51034338).

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

38675646 is a wasteful number, since it uses less digits than its factorization.

38675646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425 (or 1422 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 38675646 is about 6218.9746743334. The cubic root of 38675646 is about 338.1783951424.

It can be divided in two parts, 38 and 675646, that added together give a square (675684 = 822²).

The spelling of 38675646 in words is "thirty-eight million, six hundred seventy-five thousand, six hundred forty-six".