438930049 has 2 divisors, whose sum is σ = 438930050. Its totient is φ = 438930048.

The previous prime is 438929989. The next prime is 438930059. The reversal of 438930049 is 940039834.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350438400 + 88491649 = 18720^2 + 9407^2 .

It is a cyclic number.

It is not a de Polignac number, because 438930049 - 2²¹ = 436832897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 438929993 and 438930020.

It is not a weakly prime, because it can be changed into another prime (438930059) 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, 219465024 + 219465025.

It is an arithmetic number, because the mean of its divisors is an integer number (219465025).

Almost surely, 2^438930049 is an apocalyptic number.

It is an amenable number.

438930049 is a deficient number, since it is larger than the sum of its proper divisors (1).

438930049 is an equidigital number, since it uses as much as digits as its factorization.

438930049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 438930049 is about 20950.6574837164. The cubic root of 438930049 is about 759.9734807229.

The spelling of 438930049 in words is "four hundred thirty-eight million, nine hundred thirty thousand, forty-nine".