38389628 has 6 divisors (see below), whose sum is σ = 67181856. Its totient is φ = 19194812.

The previous prime is 38389627. The next prime is 38389643. The reversal of 38389628 is 82698383.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38389627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4798700 + ... + 4798707.

It is an arithmetic number, because the mean of its divisors is an integer number (11196976).

Almost surely, 2^38389628 is an apocalyptic number.

It is an amenable number.

38389628 is a deficient number, since it is larger than the sum of its proper divisors (28792228).

38389628 is a wasteful number, since it uses less digits than its factorization.

38389628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9597411 (or 9597409 counting only the distinct ones).

The product of its digits is 497664, while the sum is 47.

The square root of 38389628 is about 6195.9364102612. The cubic root of 38389628 is about 337.3426880952.

The spelling of 38389628 in words is "thirty-eight million, three hundred eighty-nine thousand, six hundred twenty-eight".