490457 has 4 divisors (see below), whose sum is σ = 535056. Its totient is φ = 445860.

The previous prime is 490453. The next prime is 490459. The reversal of 490457 is 754094.

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 490457 - 2² = 490453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490453) 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, 22283 + ... + 22304.

It is an arithmetic number, because the mean of its divisors is an integer number (133764).

2⁴⁹⁰⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

490457 is a deficient number, since it is larger than the sum of its proper divisors (44599).

490457 is a wasteful number, since it uses less digits than its factorization.

490457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44598.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 490457 is about 700.3263524957. The cubic root of 490457 is about 78.8618533146.

The spelling of 490457 in words is "four hundred ninety thousand, four hundred fifty-seven".