2001420344 has 96 divisors (see below), whose sum is σ = 4803896160. Its totient is φ = 764924160.

The previous prime is 2001420241. The next prime is 2001420373. The reversal of 2001420344 is 4430241002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 356342 + ... + 361914.

It is an arithmetic number, because the mean of its divisors is an integer number (50040585).

Almost surely, 2^2001420344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001420344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2401948080).

2001420344 is an abundant number, since it is smaller than the sum of its proper divisors (2802475816).

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

2001420344 is a wasteful number, since it uses less digits than its factorization.

2001420344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5661 (or 5646 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2001420344 is about 44737.2366603035. The cubic root of 2001420344 is about 1260.2192328696.

Adding to 2001420344 its reverse (4430241002), we get a palindrome (6431661346).

The spelling of 2001420344 in words is "two billion, one million, four hundred twenty thousand, three hundred forty-four".