38638708 has 12 divisors (see below), whose sum is σ = 67671072. Its totient is φ = 19304120.

The previous prime is 38638703. The next prime is 38638709. The reversal of 38638708 is 80783683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38638703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3423 + ... + 9433.

It is an arithmetic number, because the mean of its divisors is an integer number (5639256).

Almost surely, 2^38638708 is an apocalyptic number.

It is an amenable number.

38638708 is a deficient number, since it is larger than the sum of its proper divisors (29032364).

38638708 is a wasteful number, since it uses less digits than its factorization.

38638708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7622 (or 7620 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 38638708 is about 6216.0041827528. The cubic root of 38638708 is about 338.0706993548.

The spelling of 38638708 in words is "thirty-eight million, six hundred thirty-eight thousand, seven hundred eight".