338505506 has 4 divisors (see below), whose sum is σ = 507758262. Its totient is φ = 169252752.

The previous prime is 338505481. The next prime is 338505509. The reversal of 338505506 is 605505833.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 311204881 + 27300625 = 17641^2 + 5225^2 .

It is a super-2 number, since 2×338505506² = 229171955184632072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (338505509) 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 as a sum of consecutive naturals, namely, 84626375 + ... + 84626378.

Almost surely, 2^338505506 is an apocalyptic number.

338505506 is a deficient number, since it is larger than the sum of its proper divisors (169252756).

338505506 is a wasteful number, since it uses less digits than its factorization.

338505506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169252755.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 338505506 is about 18398.5191251905. The cubic root of 338505506 is about 696.9290684747.

The spelling of 338505506 in words is "three hundred thirty-eight million, five hundred five thousand, five hundred six".