1790849666 has 16 divisors (see below), whose sum is σ = 2878563744. Its totient is φ = 832597824.

The previous prime is 1790849647. The next prime is 1790849677. The reversal of 1790849666 is 6669480971.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314480 + ... + 320123.

It is an arithmetic number, because the mean of its divisors is an integer number (179910234).

Almost surely, 2^1790849666 is an apocalyptic number.

1790849666 is a deficient number, since it is larger than the sum of its proper divisors (1087714078).

1790849666 is a wasteful number, since it uses less digits than its factorization.

1790849666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634705.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The square root of 1790849666 is about 42318.4317526063. The cubic root of 1790849666 is about 1214.3756304733.

The spelling of 1790849666 in words is "one billion, seven hundred ninety million, eight hundred forty-nine thousand, six hundred sixty-six".