38220841 has 2 divisors, whose sum is σ = 38220842. Its totient is φ = 38220840.

The previous prime is 38220827. The next prime is 38220857. The reversal of 38220841 is 14802283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33977241 + 4243600 = 5829^2 + 2060^2 .

It is a cyclic number.

It is not a de Polignac number, because 38220841 - 2⁷ = 38220713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38220821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19110420 + 19110421.

It is an arithmetic number, because the mean of its divisors is an integer number (19110421).

Almost surely, 2^38220841 is an apocalyptic number.

It is an amenable number.

38220841 is a deficient number, since it is larger than the sum of its proper divisors (1).

38220841 is an equidigital number, since it uses as much as digits as its factorization.

38220841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 38220841 is about 6182.3006235543. The cubic root of 38220841 is about 336.8475655378.

The spelling of 38220841 in words is "thirty-eight million, two hundred twenty thousand, eight hundred forty-one".