2001142244 has 24 divisors (see below), whose sum is σ = 3693463200. Its totient is φ = 946071360.

The previous prime is 2001142237. The next prime is 2001142259. The reversal of 2001142244 is 4422411002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14327 + ... + 64865.

It is an arithmetic number, because the mean of its divisors is an integer number (153894300).

Almost surely, 2^2001142244 is an apocalyptic number.

It is an amenable number.

2001142244 is a deficient number, since it is larger than the sum of its proper divisors (1692320956).

2001142244 is a wasteful number, since it uses less digits than its factorization.

2001142244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51083 (or 51081 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2001142244 is about 44734.1284032672. The cubic root of 2001142244 is about 1260.1608604569.

Adding to 2001142244 its reverse (4422411002), we get a palindrome (6423553246).

The spelling of 2001142244 in words is "two billion, one million, one hundred forty-two thousand, two hundred forty-four".