38221589 has 16 divisors (see below), whose sum is σ = 44518656. Its totient is φ = 32140800.

The previous prime is 38221571. The next prime is 38221609. The reversal of 38221589 is 98512283.

38221589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 38221589 - 2²⁰ = 37173013 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38221489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122744 + ... + 123054.

It is an arithmetic number, because the mean of its divisors is an integer number (2782416).

Almost surely, 2^38221589 is an apocalyptic number.

It is an amenable number.

38221589 is a deficient number, since it is larger than the sum of its proper divisors (6297067).

38221589 is a wasteful number, since it uses less digits than its factorization.

38221589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596.

The product of its digits is 34560, while the sum is 38.

The square root of 38221589 is about 6182.3611185372. The cubic root of 38221589 is about 336.8497629457.

The spelling of 38221589 in words is "thirty-eight million, two hundred twenty-one thousand, five hundred eighty-nine".