338863645 has 8 divisors (see below), whose sum is σ = 407136600. Its totient is φ = 270757440.

The previous prime is 338863643. The next prime is 338863667. The reversal of 338863645 is 546368833.

It can be written as a sum of positive squares in 4 ways, for example, as 52374169 + 286489476 = 7237^2 + 16926^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 338863645 - 2¹ = 338863643 is a prime.

It is a super-2 number, since 2×338863645² = 229657139805372050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 338863595 and 338863604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338863643) 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 in 7 ways as a sum of consecutive naturals, for example, 37170 + ... + 45379.

It is an arithmetic number, because the mean of its divisors is an integer number (50892075).

Almost surely, 2^338863645 is an apocalyptic number.

It is an amenable number.

338863645 is a deficient number, since it is larger than the sum of its proper divisors (68272955).

338863645 is an equidigital number, since it uses as much as digits as its factorization.

338863645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83375.

The product of its digits is 1244160, while the sum is 46.

The square root of 338863645 is about 18408.2493735825. The cubic root of 338863645 is about 697.1747656172.

The spelling of 338863645 in words is "three hundred thirty-eight million, eight hundred sixty-three thousand, six hundred forty-five".