1667946244 has 12 divisors (see below), whose sum is σ = 2919371868. Its totient is φ = 833840000.

The previous prime is 1667946239. The next prime is 1667946283. The reversal of 1667946244 is 4426497661.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1349680644 + 318265600 = 36738^2 + 17840^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1777 + ... + 57784.

It is an arithmetic number, because the mean of its divisors is an integer number (243280989).

Almost surely, 2^1667946244 is an apocalyptic number.

It is an amenable number.

1667946244 is a deficient number, since it is larger than the sum of its proper divisors (1251425624).

1667946244 is a wasteful number, since it uses less digits than its factorization.

1667946244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66566 (or 66564 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 49.

The square root of 1667946244 is about 40840.4975973604. The cubic root of 1667946244 is about 1185.9344452162.

The spelling of 1667946244 in words is "one billion, six hundred sixty-seven million, nine hundred forty-six thousand, two hundred forty-four".