1995924189 has 16 divisors (see below), whose sum is σ = 3123609728. Its totient is φ = 1109702592.

The previous prime is 1995924187. The next prime is 1995924223. The reversal of 1995924189 is 9814295991.

It is not a de Polignac number, because 1995924189 - 2¹ = 1995924187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995924187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1283602 + ... + 1285155.

It is an arithmetic number, because the mean of its divisors is an integer number (195225608).

Almost surely, 2^1995924189 is an apocalyptic number.

It is an amenable number.

1995924189 is a deficient number, since it is larger than the sum of its proper divisors (1127685539).

1995924189 is a wasteful number, since it uses less digits than its factorization.

1995924189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568804.

The product of its digits is 2099520, while the sum is 57.

The square root of 1995924189 is about 44675.7673577075. The cubic root of 1995924189 is about 1259.0646011649.

The spelling of 1995924189 in words is "one billion, nine hundred ninety-five million, nine hundred twenty-four thousand, one hundred eighty-nine".