38649241 has 2 divisors, whose sum is σ = 38649242. Its totient is φ = 38649240.

The previous prime is 38649239. The next prime is 38649263. The reversal of 38649241 is 14294683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34633225 + 4016016 = 5885^2 + 2004^2 .

It is a cyclic number.

It is not a de Polignac number, because 38649241 - 2¹ = 38649239 is a prime.

Together with 38649239, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 38649241.

It is not a weakly prime, because it can be changed into another prime (38649271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19324620 + 19324621.

It is an arithmetic number, because the mean of its divisors is an integer number (19324621).

Almost surely, 2^38649241 is an apocalyptic number.

It is an amenable number.

38649241 is a deficient number, since it is larger than the sum of its proper divisors (1).

38649241 is an equidigital number, since it uses as much as digits as its factorization.

38649241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 37.

The square root of 38649241 is about 6216.8513734848. The cubic root of 38649241 is about 338.1014161786.

The spelling of 38649241 in words is "thirty-eight million, six hundred forty-nine thousand, two hundred forty-one".