1995603488 has 54 divisors (see below), whose sum is σ = 4031427519. Its totient is φ = 972404992.

The previous prime is 1995603439. The next prime is 1995603523. The reversal of 1995603488 is 8843065991.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 595945744 + 1399657744 = 24412^2 + 37412^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=31588.

It is a super-2 number, since 2×1995603488² = 7964866562635532288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

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 8 ways as a sum of consecutive naturals, for example, 13393238 + ... + 13393386.

Almost surely, 2^1995603488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1995603488

1995603488 is an abundant number, since it is smaller than the sum of its proper divisors (2035824031).

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

1995603488 is an frugal number, since it uses more digits than its factorization.

1995603488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 53.

The square root of 1995603488 is about 44672.1780082413. The cubic root of 1995603488 is about 1258.9971629146.

The spelling of 1995603488 in words is "one billion, nine hundred ninety-five million, six hundred three thousand, four hundred eighty-eight".