38622449 has 2 divisors, whose sum is σ = 38622450. Its totient is φ = 38622448.

The previous prime is 38622443. The next prime is 38622457. The reversal of 38622449 is 94422683.

It is a happy number.

38622449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26337424 + 12285025 = 5132^2 + 3505^2 .

It is a cyclic number.

It is not a de Polignac number, because 38622449 - 2⁴ = 38622433 is a prime.

It is not a weakly prime, because it can be changed into another prime (38622443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19311224 + 19311225.

It is an arithmetic number, because the mean of its divisors is an integer number (19311225).

Almost surely, 2^38622449 is an apocalyptic number.

It is an amenable number.

38622449 is a deficient number, since it is larger than the sum of its proper divisors (1).

38622449 is an equidigital number, since it uses as much as digits as its factorization.

38622449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 38.

The square root of 38622449 is about 6214.6962114008. The cubic root of 38622449 is about 338.0232731428.

The spelling of 38622449 in words is "thirty-eight million, six hundred twenty-two thousand, four hundred forty-nine".