38840072 has 16 divisors (see below), whose sum is σ = 72972240. Its totient is φ = 19380816.

The previous prime is 38840071. The next prime is 38840083. The reversal of 38840072 is 27004883.

It is not an unprimeable number, because it can be changed into a prime (38840071) 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, 458 + ... + 8825.

It is an arithmetic number, because the mean of its divisors is an integer number (4560765).

Almost surely, 2^38840072 is an apocalyptic number.

It is an amenable number.

38840072 is a deficient number, since it is larger than the sum of its proper divisors (34132168).

38840072 is a wasteful number, since it uses less digits than its factorization.

38840072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9812 (or 9808 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 38840072 is about 6232.1803568254. The cubic root of 38840072 is about 338.6569625081.

The spelling of 38840072 in words is "thirty-eight million, eight hundred forty thousand, seventy-two".