2638486441 has 2 divisors, whose sum is σ = 2638486442. Its totient is φ = 2638486440.

The previous prime is 2638486393. The next prime is 2638486457. The reversal of 2638486441 is 1446848362.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2313225216 + 325261225 = 48096^2 + 18035^2 .

It is a cyclic number.

It is not a de Polignac number, because 2638486441 - 2¹⁹ = 2637962153 is a prime.

It is a super-2 number, since 2×2638486441² = 13923221398681692962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2638486391 and 2638486400.

It is not a weakly prime, because it can be changed into another prime (2638486481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319243220 + 1319243221.

It is an arithmetic number, because the mean of its divisors is an integer number (1319243221).

Almost surely, 2^2638486441 is an apocalyptic number.

It is an amenable number.

2638486441 is a deficient number, since it is larger than the sum of its proper divisors (1).

2638486441 is an equidigital number, since it uses as much as digits as its factorization.

2638486441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 884736, while the sum is 46.

The square root of 2638486441 is about 51366.1994019414. The cubic root of 2638486441 is about 1381.8204709328.

The spelling of 2638486441 in words is "two billion, six hundred thirty-eight million, four hundred eighty-six thousand, four hundred forty-one".