1995389472 has 48 divisors (see below), whose sum is σ = 5465638080. Its totient is φ = 636210432.

The previous prime is 1995389437. The next prime is 1995389489. The reversal of 1995389472 is 2749835991.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449647 + ... + 454062.

It is an arithmetic number, because the mean of its divisors is an integer number (113867460).

Almost surely, 2^1995389472 is an apocalyptic number.

1995389472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1995389472 is an abundant number, since it is smaller than the sum of its proper divisors (3470248608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1995389472 is a wasteful number, since it uses less digits than its factorization.

1995389472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903745 (or 903737 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 57.

The square root of 1995389472 is about 44669.7825380872. The cubic root of 1995389472 is about 1258.9521547803.

The spelling of 1995389472 in words is "one billion, nine hundred ninety-five million, three hundred eighty-nine thousand, four hundred seventy-two".