338720423 has 2 divisors, whose sum is σ = 338720424. Its totient is φ = 338720422.

The previous prime is 338720413. The next prime is 338720441. The reversal of 338720423 is 324027833.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 338720423 - 2¹⁰ = 338719399 is a prime.

It is a super-2 number, since 2×338720423² = 229463049914597858, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 338720423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338720413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169360211 + 169360212.

It is an arithmetic number, because the mean of its divisors is an integer number (169360212).

Almost surely, 2^338720423 is an apocalyptic number.

338720423 is a deficient number, since it is larger than the sum of its proper divisors (1).

338720423 is an equidigital number, since it uses as much as digits as its factorization.

338720423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 338720423 is about 18404.3588043702. The cubic root of 338720423 is about 697.0765305931.

The spelling of 338720423 in words is "three hundred thirty-eight million, seven hundred twenty thousand, four hundred twenty-three".