38500221 has 8 divisors (see below), whose sum is σ = 51554880. Its totient is φ = 25556192.

The previous prime is 38500201. The next prime is 38500249. The reversal of 38500221 is 12200583.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38500221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38500201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26841 + ... + 28238.

It is an arithmetic number, because the mean of its divisors is an integer number (6444360).

Almost surely, 2^38500221 is an apocalyptic number.

It is an amenable number.

38500221 is a deficient number, since it is larger than the sum of its proper divisors (13054659).

38500221 is a wasteful number, since it uses less digits than its factorization.

38500221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55315.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 38500221 is about 6204.8546316574. The cubic root of 38500221 is about 337.6663169297. Note that the first 3 decimals are identical.

The spelling of 38500221 in words is "thirty-eight million, five hundred thousand, two hundred twenty-one".