1995171244 has 24 divisors (see below), whose sum is σ = 3890009088. Its totient is φ = 887599440.

The previous prime is 1995171193. The next prime is 1995171287. The reversal of 1995171244 is 4421715991.

It is a self number, because there is not a number n which added to its sum of digits gives 1995171244.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480324 + ... + 484459.

It is an arithmetic number, because the mean of its divisors is an integer number (162083712).

Almost surely, 2^1995171244 is an apocalyptic number.

It is an amenable number.

1995171244 is a deficient number, since it is larger than the sum of its proper divisors (1894837844).

1995171244 is a wasteful number, since it uses less digits than its factorization.

1995171244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964845 (or 964843 counting only the distinct ones).

The product of its digits is 90720, while the sum is 43.

The square root of 1995171244 is about 44667.3397909479. The cubic root of 1995171244 is about 1258.9062575372.

The spelling of 1995171244 in words is "one billion, nine hundred ninety-five million, one hundred seventy-one thousand, two hundred forty-four".