2001421349 has 4 divisors (see below), whose sum is σ = 2065983360. Its totient is φ = 1936859340.

The previous prime is 2001421333. The next prime is 2001421361. The reversal of 2001421349 is 9431241002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2001421349 - 2⁴ = 2001421333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001421319) 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, 32280959 + ... + 32281020.

It is an arithmetic number, because the mean of its divisors is an integer number (516495840).

Almost surely, 2^2001421349 is an apocalyptic number.

It is an amenable number.

2001421349 is a deficient number, since it is larger than the sum of its proper divisors (64562011).

2001421349 is an equidigital number, since it uses as much as digits as its factorization.

2001421349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64562010.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2001421349 is about 44737.2478925559. The cubic root of 2001421349 is about 1260.2194438064.

The spelling of 2001421349 in words is "two billion, one million, four hundred twenty-one thousand, three hundred forty-nine".