38270221 has 16 divisors (see below), whose sum is σ = 42674688. Its totient is φ = 34030000.

The previous prime is 38270201. The next prime is 38270231. The reversal of 38270221 is 12207283.

It is not a de Polignac number, because 38270221 - 2⁷ = 38270093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38270201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152346 + ... + 152596.

It is an arithmetic number, because the mean of its divisors is an integer number (2667168).

Almost surely, 2^38270221 is an apocalyptic number.

It is an amenable number.

38270221 is a deficient number, since it is larger than the sum of its proper divisors (4404467).

38270221 is a wasteful number, since it uses less digits than its factorization.

38270221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 38270221 is about 6186.2929933846. The cubic root of 38270221 is about 336.9925682307.

The spelling of 38270221 in words is "thirty-eight million, two hundred seventy thousand, two hundred twenty-one".