4098498181 has 4 divisors (see below), whose sum is σ = 4108822252. Its totient is φ = 4088174112.

The previous prime is 4098498161. The next prime is 4098498197. The reversal of 4098498181 is 1818948904.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1696616100 + 2401882081 = 41190^2 + 49009^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4098498181 is a prime.

It is a super-2 number, since 2×4098498181² = 33595374679320617522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4098498101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5161440 + ... + 5162233.

It is an arithmetic number, because the mean of its divisors is an integer number (1027205563).

Almost surely, 2^4098498181 is an apocalyptic number.

It is an amenable number.

4098498181 is a deficient number, since it is larger than the sum of its proper divisors (10324071).

4098498181 is a wasteful number, since it uses less digits than its factorization.

4098498181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10324070.

The product of its (nonzero) digits is 663552, while the sum is 52.

The square root of 4098498181 is about 64019.5140640727. The cubic root of 4098498181 is about 1600.3252178757.

The spelling of 4098498181 in words is "four billion, ninety-eight million, four hundred ninety-eight thousand, one hundred eighty-one".