2001214944 has 96 divisors (see below), whose sum is σ = 5874452640. Its totient is φ = 662777856.

The previous prime is 2001214937. The next prime is 2001214979. The reversal of 2001214944 is 4494121002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×2001214944² = 8009722504177846272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128272 + ... + 143024.

It is an arithmetic number, because the mean of its divisors is an integer number (61192215).

Almost surely, 2^2001214944 is an apocalyptic number.

2001214944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001214944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2937226320).

2001214944 is an abundant number, since it is smaller than the sum of its proper divisors (3873237696).

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

2001214944 is a wasteful number, since it uses less digits than its factorization.

2001214944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14929 (or 14915 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2001214944 is about 44734.9409745894. The cubic root of 2001214944 is about 1260.1761205058.

Adding to 2001214944 its reverse (4494121002), we get a palindrome (6495335946).

The spelling of 2001214944 in words is "two billion, one million, two hundred fourteen thousand, nine hundred forty-four".