3198897449 has 30 divisors (see below), whose sum is σ = 3654643230. Its totient is φ = 2798294400.

The previous prime is 3198897433. The next prime is 3198897469. The reversal of 3198897449 is 9447988913.

It can be written as a sum of positive squares in 3 ways, for example, as 100861849 + 3098035600 = 10043^2 + 55660^2 .

It is not a de Polignac number, because 3198897449 - 2⁴ = 3198897433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3198897391 and 3198897400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3198897469) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 43820477 + ... + 43820549.

It is an arithmetic number, because the mean of its divisors is an integer number (121821441).

Almost surely, 2^3198897449 is an apocalyptic number.

It is an amenable number.

3198897449 is a deficient number, since it is larger than the sum of its proper divisors (455745781).

3198897449 is an frugal number, since it uses more digits than its factorization.

3198897449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 125 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 62.

The square root of 3198897449 is about 56558.7963892444. The cubic root of 3198897449 is about 1473.4433369895.

The spelling of 3198897449 in words is "three billion, one hundred ninety-eight million, eight hundred ninety-seven thousand, four hundred forty-nine".