4198320081 has 6 divisors (see below), whose sum is σ = 6064240130. Its totient is φ = 2798880048.

The previous prime is 4198320029. The next prime is 4198320131. The reversal of 4198320081 is 1800238914.

It can be written as a sum of positive squares in only one way, i.e., 2397081600 + 1801238481 = 48960^2 + 42441^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4198320081 is a prime.

It is a super-2 number, since 2×4198320081² = 35251783005055693122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4198320001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 233239996 + ... + 233240013.

Almost surely, 2^4198320081 is an apocalyptic number.

It is an amenable number.

4198320081 is a deficient number, since it is larger than the sum of its proper divisors (1865920049).

4198320081 is a wasteful number, since it uses less digits than its factorization.

4198320081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466480015 (or 466480012 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 4198320081 is about 64794.4448313279. Note that the first 3 decimals coincide. The cubic root of 4198320081 is about 1613.2135038903.

Adding to 4198320081 its reverse (1800238914), we get a palindrome (5998558995).

The spelling of 4198320081 in words is "four billion, one hundred ninety-eight million, three hundred twenty thousand, eighty-one".