338280385 has 16 divisors (see below), whose sum is σ = 415464192. Its totient is φ = 264297600.

The previous prime is 338280353. The next prime is 338280391. The reversal of 338280385 is 583082833.

It is not a de Polignac number, because 338280385 - 2⁵ = 338280353 is a prime.

It is a super-2 number, since 2×338280385² = 228867237751496450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132925 + ... + 135445.

It is an arithmetic number, because the mean of its divisors is an integer number (25966512).

Almost surely, 2^338280385 is an apocalyptic number.

It is an amenable number.

338280385 is a deficient number, since it is larger than the sum of its proper divisors (77183807).

338280385 is a wasteful number, since it uses less digits than its factorization.

338280385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 338280385 is about 18392.4001968204. The cubic root of 338280385 is about 696.7745380863.

The spelling of 338280385 in words is "three hundred thirty-eight million, two hundred eighty thousand, three hundred eighty-five".