338686564 has 12 divisors (see below), whose sum is σ = 593869500. Its totient is φ = 169009568.

The previous prime is 338686547. The next prime is 338686573. The reversal of 338686564 is 465686833.

It can be written as a sum of positive squares in 2 ways, for example, as 202777600 + 135908964 = 14240^2 + 11658^2 .

It is a super-2 number, since 2×338686564² = 229417177268252192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81139 + ... + 85210.

It is an arithmetic number, because the mean of its divisors is an integer number (49489125).

Almost surely, 2^338686564 is an apocalyptic number.

It is an amenable number.

338686564 is a deficient number, since it is larger than the sum of its proper divisors (255182936).

338686564 is a wasteful number, since it uses less digits than its factorization.

338686564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166862 (or 166860 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 49.

The square root of 338686564 is about 18403.4389177675. The cubic root of 338686564 is about 697.0533028817.

The spelling of 338686564 in words is "three hundred thirty-eight million, six hundred eighty-six thousand, five hundred sixty-four".