667380338 has 16 divisors (see below), whose sum is σ = 1034643456. Its totient is φ = 322525920.

The previous prime is 667380331. The next prime is 667380349. The reversal of 667380338 is 833083766.

It is a super-3 number, since 3×667380338³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (667380331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47270 + ... + 59742.

It is an arithmetic number, because the mean of its divisors is an integer number (64665216).

Almost surely, 2^667380338 is an apocalyptic number.

667380338 is a deficient number, since it is larger than the sum of its proper divisors (367263118).

667380338 is a wasteful number, since it uses less digits than its factorization.

667380338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13369.

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 667380338 is about 25833.7054639864. The cubic root of 667380338 is about 873.8920782354.

The spelling of 667380338 in words is "six hundred sixty-seven million, three hundred eighty thousand, three hundred thirty-eight".