2021001344 has 32 divisors (see below), whose sum is σ = 4263054300. Its totient is φ = 951058432.

The previous prime is 2021001343. The next prime is 2021001347. The reversal of 2021001344 is 4431001202.

It can be written as a sum of positive squares in 2 ways, for example, as 1908641344 + 112360000 = 43688^2 + 10600^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (2021001343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462209 + ... + 466560.

Almost surely, 2^2021001344 is an apocalyptic number.

It is an amenable number.

2021001344 is an abundant number, since it is smaller than the sum of its proper divisors (2242052956).

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

2021001344 is an equidigital number, since it uses as much as digits as its factorization.

2021001344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928800 (or 928788 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2021001344 is about 44955.5485340798. The cubic root of 2021001344 is about 1264.3157092069.

Adding to 2021001344 its reverse (4431001202), we get a palindrome (6452002546).

The spelling of 2021001344 in words is "two billion, twenty-one million, one thousand, three hundred forty-four".