338866785 has 24 divisors (see below), whose sum is σ = 589079400. Its totient is φ = 180202752.

The previous prime is 338866727. The next prime is 338866793. The reversal of 338866785 is 587668833.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 120033936 + 218832849 = 10956^2 + 14793^2 .

It is not a de Polignac number, because 338866785 - 2¹¹ = 338864737 is a prime.

It is a super-2 number, since 2×338866785² = 229661395952472450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4917 + ... + 26493.

It is an arithmetic number, because the mean of its divisors is an integer number (24544975).

Almost surely, 2^338866785 is an apocalyptic number.

It is an amenable number.

338866785 is a deficient number, since it is larger than the sum of its proper divisors (250212615).

338866785 is a wasteful number, since it uses less digits than its factorization.

338866785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21937 (or 21934 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 338866785 is about 18408.3346612343. The cubic root of 338866785 is about 697.1769190124.

The spelling of 338866785 in words is "three hundred thirty-eight million, eight hundred sixty-six thousand, seven hundred eighty-five".