1995294889 has 12 divisors (see below), whose sum is σ = 2337325312. Its totient is φ = 1668529440.

The previous prime is 1995294887. The next prime is 1995294923. The reversal of 1995294889 is 9884925991.

It is not a de Polignac number, because 1995294889 - 2¹ = 1995294887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1995294889.

It is not an unprimeable number, because it can be changed into a prime (1995294883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73017 + ... + 96550.

Almost surely, 2^1995294889 is an apocalyptic number.

It is an amenable number.

1995294889 is a deficient number, since it is larger than the sum of its proper divisors (342030423).

1995294889 is an equidigital number, since it uses as much as digits as its factorization.

1995294889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169656 (or 169615 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 64.

The square root of 1995294889 is about 44668.7238344683. The cubic root of 1995294889 is about 1258.9322626983.

The spelling of 1995294889 in words is "one billion, nine hundred ninety-five million, two hundred ninety-four thousand, eight hundred eighty-nine".