1896181798 has 16 divisors (see below), whose sum is σ = 3421681920. Its totient is φ = 769878216.

The previous prime is 1896181783. The next prime is 1896181799. The reversal of 1896181798 is 8971816981.

It is a super-2 number, since 2×1896181798² = 7191010822133025608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1896181799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3563986 + ... + 3564517.

It is an arithmetic number, because the mean of its divisors is an integer number (213855120).

Almost surely, 2^1896181798 is an apocalyptic number.

1896181798 is a deficient number, since it is larger than the sum of its proper divisors (1525500122).

1896181798 is a wasteful number, since it uses less digits than its factorization.

1896181798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7128531.

The product of its digits is 1741824, while the sum is 58.

The square root of 1896181798 is about 43545.1696287889. The cubic root of 1896181798 is about 1237.7321098884.

The spelling of 1896181798 in words is "one billion, eight hundred ninety-six million, one hundred eighty-one thousand, seven hundred ninety-eight".