38668506 has 16 divisors (see below), whose sum is σ = 81886464. Its totient is φ = 12131264.

The previous prime is 38668499. The next prime is 38668507. The reversal of 38668506 is 60586683.

It is not an unprimeable number, because it can be changed into a prime (38668507) 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 7 ways as a sum of consecutive naturals, for example, 189450 + ... + 189653.

It is an arithmetic number, because the mean of its divisors is an integer number (5117904).

Almost surely, 2^38668506 is an apocalyptic number.

38668506 is an abundant number, since it is smaller than the sum of its proper divisors (43217958).

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

38668506 is a wasteful number, since it uses less digits than its factorization.

38668506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379125.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 38668506 is about 6218.4005982246. The cubic root of 38668506 is about 338.1575832311.

The spelling of 38668506 in words is "thirty-eight million, six hundred sixty-eight thousand, five hundred six".