260738399 has 2 divisors, whose sum is σ = 260738400. Its totient is φ = 260738398.

The previous prime is 260738383. The next prime is 260738447. The reversal of 260738399 is 993837062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 260738399 - 2⁴ = 260738383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260738899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130369199 + 130369200.

It is an arithmetic number, because the mean of its divisors is an integer number (130369200).

Almost surely, 2^260738399 is an apocalyptic number.

260738399 is a deficient number, since it is larger than the sum of its proper divisors (1).

260738399 is an equidigital number, since it uses as much as digits as its factorization.

260738399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 260738399 is about 16147.3960439447. The cubic root of 260738399 is about 638.8540683911.

The spelling of 260738399 in words is "two hundred sixty million, seven hundred thirty-eight thousand, three hundred ninety-nine".