38668956 has 12 divisors (see below), whose sum is σ = 90227592. Its totient is φ = 12889648.

The previous prime is 38668951. The next prime is 38668963. The reversal of 38668956 is 65986683.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 38668899 and 38668908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38668951) 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 in 3 ways as a sum of consecutive naturals, for example, 1611195 + ... + 1611218.

It is an arithmetic number, because the mean of its divisors is an integer number (7518966).

Almost surely, 2^38668956 is an apocalyptic number.

It is an amenable number.

38668956 is an abundant number, since it is smaller than the sum of its proper divisors (51558636).

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

38668956 is a wasteful number, since it uses less digits than its factorization.

38668956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3222420 (or 3222418 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 51.

The square root of 38668956 is about 6218.4367810568. The cubic root of 38668956 is about 338.1588949818.

The spelling of 38668956 in words is "thirty-eight million, six hundred sixty-eight thousand, nine hundred fifty-six".