2000457 has 10 divisors (see below), whose sum is σ = 2988458. Its totient is φ = 1333584.

The previous prime is 2000447. The next prime is 2000497. The reversal of 2000457 is 7540002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1971216 + 29241 = 1404^2 + 171^2 .

It is not a de Polignac number, because 2000457 - 2⁶ = 2000393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000417) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12268 + ... + 12429.

2^2000457 is an apocalyptic number.

2000457 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2000457 is a deficient number, since it is larger than the sum of its proper divisors (988001).

2000457 is an equidigital number, since it uses as much as digits as its factorization.

2000457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24709 (or 24700 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 2000457 is about 1414.3751270437. The cubic root of 2000457 is about 126.0017006573.

Adding to 2000457 its reverse (7540002), we get a palindrome (9540459).

The spelling of 2000457 in words is "two million, four hundred fifty-seven", and thus it is an aban number.