38840756 has 12 divisors (see below), whose sum is σ = 68043360. Its totient is φ = 19399800.

The previous prime is 38840743. The next prime is 38840759. The reversal of 38840756 is 65704883.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38840759) 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, 416 + ... + 8823.

It is an arithmetic number, because the mean of its divisors is an integer number (5670280).

Almost surely, 2^38840756 is an apocalyptic number.

It is an amenable number.

38840756 is a deficient number, since it is larger than the sum of its proper divisors (29202604).

38840756 is a wasteful number, since it uses less digits than its factorization.

38840756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10294 (or 10292 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 38840756 is about 6232.2352330444. The cubic root of 38840756 is about 338.6589504893.

The spelling of 38840756 in words is "thirty-eight million, eight hundred forty thousand, seven hundred fifty-six".