38668772 has 6 divisors (see below), whose sum is σ = 67670358. Its totient is φ = 19334384.

The previous prime is 38668771. The next prime is 38668783. The reversal of 38668772 is 27786683.

It can be written as a sum of positive squares in only one way, i.e., 26460736 + 12208036 = 5144^2 + 3494^2 .

It is not an unprimeable number, because it can be changed into a prime (38668771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4833593 + ... + 4833600.

It is an arithmetic number, because the mean of its divisors is an integer number (11278393).

Almost surely, 2^38668772 is an apocalyptic number.

It is an amenable number.

38668772 is a deficient number, since it is larger than the sum of its proper divisors (29001586).

38668772 is a wasteful number, since it uses less digits than its factorization.

38668772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9667197 (or 9667195 counting only the distinct ones).

The product of its digits is 677376, while the sum is 47.

The square root of 38668772 is about 6218.4219863242. The cubic root of 38668772 is about 338.1583586227.

The spelling of 38668772 in words is "thirty-eight million, six hundred sixty-eight thousand, seven hundred seventy-two".