38406856 has 8 divisors (see below), whose sum is σ = 72012870. Its totient is φ = 19203424.

The previous prime is 38406763. The next prime is 38406883. The reversal of 38406856 is 65860483.

It can be written as a sum of positive squares in only one way, i.e., 24344356 + 14062500 = 4934^2 + 3750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2400421 + ... + 2400436.

Almost surely, 2^38406856 is an apocalyptic number.

It is an amenable number.

38406856 is a deficient number, since it is larger than the sum of its proper divisors (33606014).

38406856 is a wasteful number, since it uses less digits than its factorization.

38406856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4800863 (or 4800859 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 38406856 is about 6197.3265203634. The cubic root of 38406856 is about 337.3931433090.

The spelling of 38406856 in words is "thirty-eight million, four hundred six thousand, eight hundred fifty-six".