4066489690 has 8 divisors (see below), whose sum is σ = 7319681460. Its totient is φ = 1626595872.

The previous prime is 4066489667. The next prime is 4066489703. The reversal of 4066489690 is 969846604.

It can be written as a sum of positive squares in 2 ways, for example, as 3697734481 + 368755209 = 60809^2 + 19203^2 .

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

It is a super-2 number, since 2×4066489690² = 33072676797752592200, which contains 22 as substring.

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, 203324475 + ... + 203324494.

Almost surely, 2^4066489690 is an apocalyptic number.

4066489690 is a deficient number, since it is larger than the sum of its proper divisors (3253191770).

4066489690 is a wasteful number, since it uses less digits than its factorization.

4066489690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406648976.

The product of its (nonzero) digits is 2239488, while the sum is 52.

The square root of 4066489690 is about 63769.0339428159. The cubic root of 4066489690 is about 1596.1482466571.

The spelling of 4066489690 in words is "four billion, sixty-six million, four hundred eighty-nine thousand, six hundred ninety".