2001889338 has 64 divisors (see below), whose sum is σ = 4200159744. Its totient is φ = 635544000.

The previous prime is 2001889327. The next prime is 2001889339. The reversal of 2001889338 is 8339881002.

It is a self number, because there is not a number n which added to its sum of digits gives 2001889338.

It is not an unprimeable number, because it can be changed into a prime (2001889339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2061193 + ... + 2062163.

It is an arithmetic number, because the mean of its divisors is an integer number (65627496).

Almost surely, 2^2001889338 is an apocalyptic number.

2001889338 is an abundant number, since it is smaller than the sum of its proper divisors (2198270406).

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

2001889338 is a wasteful number, since it uses less digits than its factorization.

2001889338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 2001889338 is about 44742.4780046881. The cubic root of 2001889338 is about 1260.3176611517.

The spelling of 2001889338 in words is "two billion, one million, eight hundred eighty-nine thousand, three hundred thirty-eight".