666672234 has 8 divisors (see below), whose sum is σ = 1333344480. Its totient is φ = 222224076.

The previous prime is 666672199. The next prime is 666672263. The reversal of 666672234 is 432276666.

It is a happy number.

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

666672234 is an admirable number.

It is an unprimeable number.

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, 55556014 + ... + 55556025.

It is an arithmetic number, because the mean of its divisors is an integer number (166668060).

Almost surely, 2^666672234 is an apocalyptic number.

666672234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

666672234 is a wasteful number, since it uses less digits than its factorization.

666672234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111112044.

The product of its digits is 435456, while the sum is 42.

The square root of 666672234 is about 25819.9967854374. The cubic root of 666672234 is about 873.5828964864.

The spelling of 666672234 in words is "six hundred sixty-six million, six hundred seventy-two thousand, two hundred thirty-four".