2001223574 has 8 divisors (see below), whose sum is σ = 3430669008. Its totient is φ = 857667240.

The previous prime is 2001223573. The next prime is 2001223597. The reversal of 2001223574 is 4753221002.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001223573) 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, 71472257 + ... + 71472284.

It is an arithmetic number, because the mean of its divisors is an integer number (428833626).

Almost surely, 2^2001223574 is an apocalyptic number.

2001223574 is a deficient number, since it is larger than the sum of its proper divisors (1429445434).

2001223574 is a wasteful number, since it uses less digits than its factorization.

2001223574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142944550.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 2001223574 is about 44735.0374315256. The cubic root of 2001223574 is about 1260.1779319561.

Adding to 2001223574 its reverse (4753221002), we get a palindrome (6754444576).

The spelling of 2001223574 in words is "two billion, one million, two hundred twenty-three thousand, five hundred seventy-four".