2438905321 has 2 divisors, whose sum is σ = 2438905322. Its totient is φ = 2438905320.

The previous prime is 2438905297. The next prime is 2438905331. The reversal of 2438905321 is 1235098342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1578949696 + 859955625 = 39736^2 + 29325^2 .

It is a cyclic number.

It is not a de Polignac number, because 2438905321 - 2²³ = 2430516713 is a prime.

It is a super-2 number, since 2×2438905321² = 11896518329604226082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2438905331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1219452660 + 1219452661.

It is an arithmetic number, because the mean of its divisors is an integer number (1219452661).

Almost surely, 2^2438905321 is an apocalyptic number.

It is an amenable number.

2438905321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2438905321 is an equidigital number, since it uses as much as digits as its factorization.

2438905321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 2438905321 is about 49385.2743335501. The cubic root of 2438905321 is about 1346.0617406568.

The spelling of 2438905321 in words is "two billion, four hundred thirty-eight million, nine hundred five thousand, three hundred twenty-one".