3198644500 has 48 divisors (see below), whose sum is σ = 7289597952. Its totient is φ = 1223824800.

The previous prime is 3198644497. The next prime is 3198644507. The reversal of 3198644500 is 54468913.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3198644507) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 127572 + ... + 150571.

It is an arithmetic number, because the mean of its divisors is an integer number (151866624).

Almost surely, 2^3198644500 is an apocalyptic number.

It is an amenable number.

3198644500 is an abundant number, since it is smaller than the sum of its proper divisors (4090953452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3198644500 is a wasteful number, since it uses less digits than its factorization.

3198644500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278185 (or 278173 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 3198644500 is about 56556.5601853578. The cubic root of 3198644500 is about 1473.4044990410.

The spelling of 3198644500 in words is "three billion, one hundred ninety-eight million, six hundred forty-four thousand, five hundred".