260442437 has 2 divisors, whose sum is σ = 260442438. Its totient is φ = 260442436.

The previous prime is 260442421. The next prime is 260442473. The reversal of 260442437 is 734244062.

Together with next prime (260442473) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189310081 + 71132356 = 13759^2 + 8434^2 .

It is a cyclic number.

It is not a de Polignac number, because 260442437 - 2⁴ = 260442421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260442407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130221218 + 130221219.

It is an arithmetic number, because the mean of its divisors is an integer number (130221219).

Almost surely, 2^260442437 is an apocalyptic number.

It is an amenable number.

260442437 is a deficient number, since it is larger than the sum of its proper divisors (1).

260442437 is an equidigital number, since it uses as much as digits as its factorization.

260442437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 32.

The square root of 260442437 is about 16138.2290540195. The cubic root of 260442437 is about 638.6122575526.

Adding to 260442437 its reverse (734244062), we get a palindrome (994686499).

The spelling of 260442437 in words is "two hundred sixty million, four hundred forty-two thousand, four hundred thirty-seven".