2002021536 has 48 divisors (see below), whose sum is σ = 5314377600. Its totient is φ = 659839488.

The previous prime is 2002021531. The next prime is 2002021537. The reversal of 2002021536 is 6351202002.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (2002021531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108616 + ... + 125703.

It is an arithmetic number, because the mean of its divisors is an integer number (110716200).

Almost surely, 2^2002021536 is an apocalyptic number.

It is an amenable number.

2002021536 is an abundant number, since it is smaller than the sum of its proper divisors (3312356064).

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

2002021536 is a wasteful number, since it uses less digits than its factorization.

2002021536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234421 (or 234413 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2002021536 is about 44743.9553012471. The cubic root of 2002021536 is about 1260.3454029127.

Adding to 2002021536 its reverse (6351202002), we get a palindrome (8353223538).

The spelling of 2002021536 in words is "two billion, two million, twenty-one thousand, five hundred thirty-six".