2001669948 has 24 divisors (see below), whose sum is σ = 5189514960. Its totient is φ = 667223280.

The previous prime is 2001669937. The next prime is 2001669953. The reversal of 2001669948 is 8499661002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 9266883 + ... + 9267098.

It is an arithmetic number, because the mean of its divisors is an integer number (216229790).

Almost surely, 2^2001669948 is an apocalyptic number.

It is an amenable number.

2001669948 is an abundant number, since it is smaller than the sum of its proper divisors (3187845012).

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

2001669948 is a wasteful number, since it uses less digits than its factorization.

2001669948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18533994 (or 18533986 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 2001669948 is about 44740.0262404930. The cubic root of 2001669948 is about 1260.2716194471.

The spelling of 2001669948 in words is "two billion, one million, six hundred sixty-nine thousand, nine hundred forty-eight".