1995322800 has 240 divisors, whose sum is σ = 6588462240. Its totient is φ = 515973120.

The previous prime is 1995322799. The next prime is 1995322859. The reversal of 1995322800 is 82235991.

It is a tau number, because it is divible by the number of its divisors (240).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8713086 + ... + 8713314.

It is an arithmetic number, because the mean of its divisors is an integer number (27451926).

Almost surely, 2^1995322800 is an apocalyptic number.

1995322800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1995322800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3294231120).

1995322800 is an abundant number, since it is smaller than the sum of its proper divisors (4593139440).

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

1995322800 is a wasteful number, since it uses less digits than its factorization.

1995322800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 1995322800 is about 44669.0362555540. The cubic root of 1995322800 is about 1258.9381328238.

The spelling of 1995322800 in words is "one billion, nine hundred ninety-five million, three hundred twenty-two thousand, eight hundred".