1890183868 has 12 divisors (see below), whose sum is σ = 3354411312. Its totient is φ = 931780640.

The previous prime is 1890183853. The next prime is 1890183917. The reversal of 1890183868 is 8683810981.

It is a congruent 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, 3327505 + ... + 3328072.

It is an arithmetic number, because the mean of its divisors is an integer number (279534276).

Almost surely, 2^1890183868 is an apocalyptic number.

It is an amenable number.

1890183868 is a deficient number, since it is larger than the sum of its proper divisors (1464227444).

1890183868 is a wasteful number, since it uses less digits than its factorization.

1890183868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6655652 (or 6655650 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 52.

The square root of 1890183868 is about 43476.2448700437. The cubic root of 1890183868 is about 1236.4256824248.

The spelling of 1890183868 in words is "one billion, eight hundred ninety million, one hundred eighty-three thousand, eight hundred sixty-eight".