270638429 has 2 divisors, whose sum is σ = 270638430. Its totient is φ = 270638428.

The previous prime is 270638377. The next prime is 270638443. The reversal of 270638429 is 924836072.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 269846329 + 792100 = 16427^2 + 890^2 .

It is a cyclic number.

It is not a de Polignac number, because 270638429 - 2²⁸ = 2202973 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (270638449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135319214 + 135319215.

It is an arithmetic number, because the mean of its divisors is an integer number (135319215).

Almost surely, 2^270638429 is an apocalyptic number.

It is an amenable number.

270638429 is a deficient number, since it is larger than the sum of its proper divisors (1).

270638429 is an equidigital number, since it uses as much as digits as its factorization.

270638429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 270638429 is about 16451.0920306222. The cubic root of 270638429 is about 646.8394332674.

The spelling of 270638429 in words is "two hundred seventy million, six hundred thirty-eight thousand, four hundred twenty-nine".