2001243433 has 8 divisors (see below), whose sum is σ = 2287414080. Its totient is φ = 1715142480.

The previous prime is 2001243427. The next prime is 2001243467. The reversal of 2001243433 is 3343421002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2001243433 - 2²⁹ = 1464372521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001243403) 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, 81798 + ... + 103408.

It is an arithmetic number, because the mean of its divisors is an integer number (285926760).

Almost surely, 2^2001243433 is an apocalyptic number.

It is an amenable number.

2001243433 is a deficient number, since it is larger than the sum of its proper divisors (286170647).

2001243433 is a wasteful number, since it uses less digits than its factorization.

2001243433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34847.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 2001243433 is about 44735.2593934583. The cubic root of 2001243433 is about 1260.1821003710.

Adding to 2001243433 its reverse (3343421002), we get a palindrome (5344664435).

The spelling of 2001243433 in words is "two billion, one million, two hundred forty-three thousand, four hundred thirty-three".