1893045668 has 12 divisors (see below), whose sum is σ = 3314236800. Its totient is φ = 946120872.

The previous prime is 1893045643. The next prime is 1893045683. The reversal of 1893045668 is 8665403981.

It is a super-2 number, since 2×1893045668² = 7167243802267132448, which contains 22 as substring.

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, 89768 + ... + 108831.

It is an arithmetic number, because the mean of its divisors is an integer number (276186400).

Almost surely, 2^1893045668 is an apocalyptic number.

It is an amenable number.

1893045668 is a deficient number, since it is larger than the sum of its proper divisors (1421191132).

1893045668 is a wasteful number, since it uses less digits than its factorization.

1893045668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200986 (or 200984 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The square root of 1893045668 is about 43509.1446479933. The cubic root of 1893045668 is about 1237.0493640369.

The spelling of 1893045668 in words is "one billion, eight hundred ninety-three million, forty-five thousand, six hundred sixty-eight".