38641919 has 2 divisors, whose sum is σ = 38641920. Its totient is φ = 38641918.

The previous prime is 38641913. The next prime is 38641927. The reversal of 38641919 is 91914683.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38641919 is a prime.

It is a super-2 number, since 2×38641919² = 2986395808005122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38641913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19320959 + 19320960.

It is an arithmetic number, because the mean of its divisors is an integer number (19320960).

Almost surely, 2^38641919 is an apocalyptic number.

38641919 is a deficient number, since it is larger than the sum of its proper divisors (1).

38641919 is an equidigital number, since it uses as much as digits as its factorization.

38641919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 41.

The square root of 38641919 is about 6216.2624622839. The cubic root of 38641919 is about 338.0800640136.

The spelling of 38641919 in words is "thirty-eight million, six hundred forty-one thousand, nine hundred nineteen".