1995018312 has 32 divisors (see below), whose sum is σ = 5700052800. Its totient is φ = 570005184.

The previous prime is 1995018287. The next prime is 1995018343. The reversal of 1995018312 is 2138105991.

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, 5937387 + ... + 5937722.

It is an arithmetic number, because the mean of its divisors is an integer number (178126650).

Almost surely, 2^1995018312 is an apocalyptic number.

1995018312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1995018312 is an abundant number, since it is smaller than the sum of its proper divisors (3705034488).

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

1995018312 is a wasteful number, since it uses less digits than its factorization.

1995018312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11875125 (or 11875121 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 39.

The square root of 1995018312 is about 44665.6278585670. The cubic root of 1995018312 is about 1258.8740912137.

The spelling of 1995018312 in words is "one billion, nine hundred ninety-five million, eighteen thousand, three hundred twelve".