38421841 has 2 divisors, whose sum is σ = 38421842. Its totient is φ = 38421840.

The previous prime is 38421821. The next prime is 38421893. The reversal of 38421841 is 14812483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38192400 + 229441 = 6180^2 + 479^2 .

It is a cyclic number.

It is not a de Polignac number, because 38421841 - 2⁵ = 38421809 is a prime.

It is not a weakly prime, because it can be changed into another prime (38421821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19210920 + 19210921.

It is an arithmetic number, because the mean of its divisors is an integer number (19210921).

Almost surely, 2^38421841 is an apocalyptic number.

It is an amenable number.

38421841 is a deficient number, since it is larger than the sum of its proper divisors (1).

38421841 is an equidigital number, since it uses as much as digits as its factorization.

38421841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6144, while the sum is 31.

The square root of 38421841 is about 6198.5353915260. The cubic root of 38421841 is about 337.4370172366.

The spelling of 38421841 in words is "thirty-eight million, four hundred twenty-one thousand, eight hundred forty-one".