2000491 has 8 divisors (see below), whose sum is σ = 2120000. Its totient is φ = 1882440.

The previous prime is 2000447. The next prime is 2000497. The reversal of 2000491 is 1940002.

2000491 = T₁₈ + T₁₉ + ... + T₂₂₈.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2000491 - 2⁹ = 1999979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3760 + ... + 4258.

It is an arithmetic number, because the mean of its divisors is an integer number (265000).

2^2000491 is an apocalyptic number.

2000491 is a deficient number, since it is larger than the sum of its proper divisors (119509).

2000491 is a wasteful number, since it uses less digits than its factorization.

2000491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2000491 is about 1414.3871464348. The cubic root of 2000491 is about 126.0024144998.

Adding to 2000491 its reverse (1940002), we get a palindrome (3940493).

The spelling of 2000491 in words is "two million, four hundred ninety-one", and thus it is an aban number.