38865628 has 12 divisors (see below), whose sum is σ = 69030472. Its totient is φ = 19142640.

The previous prime is 38865623. The next prime is 38865637. The reversal of 38865628 is 82656883.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38865623) 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, 72243 + ... + 72778.

Almost surely, 2^38865628 is an apocalyptic number.

It is an amenable number.

38865628 is a deficient number, since it is larger than the sum of its proper divisors (30164844).

38865628 is a wasteful number, since it uses less digits than its factorization.

38865628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145092 (or 145090 counting only the distinct ones).

The product of its digits is 552960, while the sum is 46.

The square root of 38865628 is about 6234.2303454396. The cubic root of 38865628 is about 338.7312227533.

It can be divided in two parts, 38865 and 628, that added together give a palindrome (39493).

The spelling of 38865628 in words is "thirty-eight million, eight hundred sixty-five thousand, six hundred twenty-eight".