338405569 has 4 divisors (see below), whose sum is σ = 338502400. Its totient is φ = 338308740.

The previous prime is 338405489. The next prime is 338405603. The reversal of 338405569 is 965504833.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 338405569 - 2⁹ = 338405057 is a prime.

It is a super-2 number, since 2×338405569² = 229036658260427522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (338505569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42969 + ... + 50230.

It is an arithmetic number, because the mean of its divisors is an integer number (84625600).

Almost surely, 2^338405569 is an apocalyptic number.

It is an amenable number.

338405569 is a deficient number, since it is larger than the sum of its proper divisors (96831).

338405569 is an equidigital number, since it uses as much as digits as its factorization.

338405569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96830.

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 338405569 is about 18395.8030267776. The cubic root of 338405569 is about 696.8604769212.

The spelling of 338405569 in words is "three hundred thirty-eight million, four hundred five thousand, five hundred sixty-nine".