3198222949 has 4 divisors (see below), whose sum is σ = 3198812364. Its totient is φ = 3197633536.

The previous prime is 3198222947. The next prime is 3198223003. The reversal of 3198222949 is 9492228913.

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 2210692324 + 987530625 = 47018^2 + 31425^2 .

It is a cyclic number.

It is not a de Polignac number, because 3198222949 - 2¹ = 3198222947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3198222947) 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, 286492 + ... + 297445.

It is an arithmetic number, because the mean of its divisors is an integer number (799703091).

Almost surely, 2^3198222949 is an apocalyptic number.

It is an amenable number.

3198222949 is a deficient number, since it is larger than the sum of its proper divisors (589415).

3198222949 is an equidigital number, since it uses as much as digits as its factorization.

3198222949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589414.

The product of its digits is 559872, while the sum is 49.

The square root of 3198222949 is about 56552.8332535161. The cubic root of 3198222949 is about 1473.3397692857.

The spelling of 3198222949 in words is "three billion, one hundred ninety-eight million, two hundred twenty-two thousand, nine hundred forty-nine".