38840289 has 8 divisors (see below), whose sum is σ = 51820032. Its totient is φ = 25877040.

The previous prime is 38840287. The next prime is 38840311. The reversal of 38840289 is 98204883.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38840289 - 2¹ = 38840287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38840289.

It is not an unprimeable number, because it can be changed into a prime (38840281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3267 + ... + 9399.

It is an arithmetic number, because the mean of its divisors is an integer number (6477504).

Almost surely, 2^38840289 is an apocalyptic number.

It is an amenable number.

38840289 is a deficient number, since it is larger than the sum of its proper divisors (12979743).

38840289 is a wasteful number, since it uses less digits than its factorization.

38840289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8247.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 38840289 is about 6232.1977664384. The cubic root of 38840289 is about 338.6575932006.

The spelling of 38840289 in words is "thirty-eight million, eight hundred forty thousand, two hundred eighty-nine".