38282021 has 2 divisors, whose sum is σ = 38282022. Its totient is φ = 38282020.

The previous prime is 38281981. The next prime is 38282029. The reversal of 38282021 is 12028283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33930625 + 4351396 = 5825^2 + 2086^2 .

It is a cyclic number.

It is not a de Polignac number, because 38282021 - 2¹⁰ = 38280997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38282029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19141010 + 19141011.

It is an arithmetic number, because the mean of its divisors is an integer number (19141011).

Almost surely, 2^38282021 is an apocalyptic number.

It is an amenable number.

38282021 is a deficient number, since it is larger than the sum of its proper divisors (1).

38282021 is an equidigital number, since it uses as much as digits as its factorization.

38282021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 38282021 is about 6187.2466412775. The cubic root of 38282021 is about 337.0272000634.

The spelling of 38282021 in words is "thirty-eight million, two hundred eighty-two thousand, twenty-one".