264040457 has 2 divisors, whose sum is σ = 264040458. Its totient is φ = 264040456.

The previous prime is 264040453. The next prime is 264040463. The reversal of 264040457 is 754040462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 261016336 + 3024121 = 16156^2 + 1739^2 .

It is a cyclic number.

It is not a de Polignac number, because 264040457 - 2² = 264040453 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (264040453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132020228 + 132020229.

It is an arithmetic number, because the mean of its divisors is an integer number (132020229).

Almost surely, 2^264040457 is an apocalyptic number.

It is an amenable number.

264040457 is a deficient number, since it is larger than the sum of its proper divisors (1).

264040457 is an equidigital number, since it uses as much as digits as its factorization.

264040457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 264040457 is about 16249.3217396912. The cubic root of 264040457 is about 641.5396338245.

The spelling of 264040457 in words is "two hundred sixty-four million, forty thousand, four hundred fifty-seven".