1896985142 has 32 divisors (see below), whose sum is σ = 3135549312. Its totient is φ = 855264384.

The previous prime is 1896985121. The next prime is 1896985183. The reversal of 1896985142 is 2415896981.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 826148 + ... + 828440.

It is an arithmetic number, because the mean of its divisors is an integer number (97985916).

Almost surely, 2^1896985142 is an apocalyptic number.

1896985142 is a deficient number, since it is larger than the sum of its proper divisors (1238564170).

1896985142 is a wasteful number, since it uses less digits than its factorization.

1896985142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3032.

The product of its digits is 1244160, while the sum is 53.

The square root of 1896985142 is about 43554.3929127706. The cubic root of 1896985142 is about 1237.9068793960.

The spelling of 1896985142 in words is "one billion, eight hundred ninety-six million, nine hundred eighty-five thousand, one hundred forty-two".