667048442 has 8 divisors (see below), whose sum is σ = 1001066196. Its totient is φ = 333359712.

The previous prime is 667048441. The next prime is 667048451. The reversal of 667048442 is 244840766.

It can be written as a sum of positive squares in 2 ways, for example, as 661981441 + 5067001 = 25729^2 + 2251^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 667048442.

It is not an unprimeable number, because it can be changed into a prime (667048441) 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 3 ways as a sum of consecutive naturals, for example, 77123 + ... + 85334.

Almost surely, 2^667048442 is an apocalyptic number.

667048442 is a deficient number, since it is larger than the sum of its proper divisors (334017754).

667048442 is a wasteful number, since it uses less digits than its factorization.

667048442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164512.

The product of its (nonzero) digits is 258048, while the sum is 41.

The square root of 667048442 is about 25827.2809641278. The cubic root of 667048442 is about 873.7471886514.

The spelling of 667048442 in words is "six hundred sixty-seven million, forty-eight thousand, four hundred forty-two".