2001198648 has 32 divisors (see below), whose sum is σ = 5052537360. Its totient is φ = 660460800.

The previous prime is 2001198623. The next prime is 2001198649. The reversal of 2001198648 is 8468911002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001198649) 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 7 ways as a sum of consecutive naturals, for example, 410365 + ... + 415212.

Almost surely, 2^2001198648 is an apocalyptic number.

It is an amenable number.

2001198648 is an abundant number, since it is smaller than the sum of its proper divisors (3051338712).

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

2001198648 is a wasteful number, since it uses less digits than its factorization.

2001198648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825687 (or 825683 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 2001198648 is about 44734.7588347138. The cubic root of 2001198648 is about 1260.1726999360.

The spelling of 2001198648 in words is "two billion, one million, one hundred ninety-eight thousand, six hundred forty-eight".