270640423 has 2 divisors, whose sum is σ = 270640424. Its totient is φ = 270640422.

The previous prime is 270640417. The next prime is 270640463. The reversal of 270640423 is 324046072.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-270640423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 270640391 and 270640400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (270640463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135320211 + 135320212.

It is an arithmetic number, because the mean of its divisors is an integer number (135320212).

Almost surely, 2^270640423 is an apocalyptic number.

270640423 is a deficient number, since it is larger than the sum of its proper divisors (1).

270640423 is an equidigital number, since it uses as much as digits as its factorization.

270640423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 270640423 is about 16451.1526343901. The cubic root of 270640423 is about 646.8410218502.

Adding to 270640423 its reverse (324046072), we get a palindrome (594686495).

The spelling of 270640423 in words is "two hundred seventy million, six hundred forty thousand, four hundred twenty-three".