669351338 has 8 divisors (see below), whose sum is σ = 1004455488. Its totient is φ = 334532844.

The previous prime is 669351337. The next prime is 669351377. The reversal of 669351338 is 833153966.

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

It is not an unprimeable number, because it can be changed into a prime (669351337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65456 + ... + 74987.

It is an arithmetic number, because the mean of its divisors is an integer number (125556936).

Almost surely, 2^669351338 is an apocalyptic number.

669351338 is a deficient number, since it is larger than the sum of its proper divisors (335104150).

669351338 is a wasteful number, since it uses less digits than its factorization.

669351338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142828.

The product of its digits is 349920, while the sum is 44.

The square root of 669351338 is about 25871.8251772077. The cubic root of 669351338 is about 874.7515323899.

The spelling of 669351338 in words is "six hundred sixty-nine million, three hundred fifty-one thousand, three hundred thirty-eight".