2001420244 has 12 divisors (see below), whose sum is σ = 3519086368. Its totient is φ = 995967000.

The previous prime is 2001420241. The next prime is 2001420373. The reversal of 2001420244 is 4420241002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001420241) 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, 1184832 + ... + 1186519.

Almost surely, 2^2001420244 is an apocalyptic number.

It is an amenable number.

2001420244 is a deficient number, since it is larger than the sum of its proper divisors (1517666124).

2001420244 is a wasteful number, since it uses less digits than its factorization.

2001420244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371566 (or 2371564 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 2001420244 is about 44737.2355426662. The cubic root of 2001420244 is about 1260.2192118808.

Adding to 2001420244 its reverse (4420241002), we get a palindrome (6421661246).

The spelling of 2001420244 in words is "two billion, one million, four hundred twenty thousand, two hundred forty-four".