1995224450 has 18 divisors (see below), whose sum is σ = 3711705051. Its totient is φ = 797963440.

The previous prime is 1995224437. The next prime is 1995224477. The reversal of 1995224450 is 544225991.

It can be written as a sum of positive squares in 5 ways, for example, as 792591409 + 1202633041 = 28153^2 + 34679^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=31585.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1995224398 and 1995224407.

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, 312692 + ... + 319008.

Almost surely, 2^1995224450 is an apocalyptic number.

1995224450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1995224450 is a deficient number, since it is larger than the sum of its proper divisors (1716480601).

1995224450 is an frugal number, since it uses more digits than its factorization.

1995224450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12646 (or 6324 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 1995224450 is about 44667.9353675542. The cubic root of 1995224450 is about 1258.9174480171.

The spelling of 1995224450 in words is "one billion, nine hundred ninety-five million, two hundred twenty-four thousand, four hundred fifty".