270406399 has 2 divisors, whose sum is σ = 270406400. Its totient is φ = 270406398.

The previous prime is 270406393. The next prime is 270406453. The reversal of 270406399 is 993604072.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 270406399 - 2¹³ = 270398207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (270406393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135203199 + 135203200.

It is an arithmetic number, because the mean of its divisors is an integer number (135203200).

Almost surely, 2^270406399 is an apocalyptic number.

270406399 is a deficient number, since it is larger than the sum of its proper divisors (1).

270406399 is an equidigital number, since it uses as much as digits as its factorization.

270406399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 270406399 is about 16444.0384030201. The cubic root of 270406399 is about 646.6545259645.

The spelling of 270406399 in words is "two hundred seventy million, four hundred six thousand, three hundred ninety-nine".