2001041536 has 32 divisors (see below), whose sum is σ = 4293103500. Its totient is φ = 923556864.

The previous prime is 2001041533. The next prime is 2001041543. The reversal of 2001041536 is 6351401002.

It can be written as a sum of positive squares in 2 ways, for example, as 1871081536 + 129960000 = 43256^2 + 11400^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (2001041533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 599611 + ... + 602938.

Almost surely, 2^2001041536 is an apocalyptic number.

2001041536 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2001041536 is an abundant number, since it is smaller than the sum of its proper divisors (2292061964).

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

2001041536 is a wasteful number, since it uses less digits than its factorization.

2001041536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202576 (or 1202564 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2001041536 is about 44733.0027608253. The cubic root of 2001041536 is about 1260.1397207954.

Adding to 2001041536 its reverse (6351401002), we get a palindrome (8352442538).

The spelling of 2001041536 in words is "two billion, one million, forty-one thousand, five hundred thirty-six".