262400641 has 2 divisors, whose sum is σ = 262400642. Its totient is φ = 262400640.

The previous prime is 262400603. The next prime is 262400683. The reversal of 262400641 is 146004262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234733041 + 27667600 = 15321^2 + 5260^2 .

It is a cyclic number.

It is not a de Polignac number, because 262400641 - 2¹⁷ = 262269569 is a prime.

It is not a weakly prime, because it can be changed into another prime (262400141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131200320 + 131200321.

It is an arithmetic number, because the mean of its divisors is an integer number (131200321).

Almost surely, 2^262400641 is an apocalyptic number.

It is an amenable number.

262400641 is a deficient number, since it is larger than the sum of its proper divisors (1).

262400641 is an equidigital number, since it uses as much as digits as its factorization.

262400641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 262400641 is about 16198.7851704997. The cubic root of 262400641 is about 640.2087868606.

The spelling of 262400641 in words is "two hundred sixty-two million, four hundred thousand, six hundred forty-one".