494457 has 8 divisors (see below), whose sum is σ = 674784. Its totient is φ = 321888.

The previous prime is 494443. The next prime is 494471. The reversal of 494457 is 754494.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (494443) and next prime (494471).

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

It is not a de Polignac number, because 494457 - 2⁴ = 494441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (494407) 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, 1788 + ... + 2045.

It is an arithmetic number, because the mean of its divisors is an integer number (84348).

2⁴⁹⁴⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

494457 is a deficient number, since it is larger than the sum of its proper divisors (180327).

494457 is a wasteful number, since it uses less digits than its factorization.

494457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3879.

The product of its digits is 20160, while the sum is 33.

The square root of 494457 is about 703.1763647905. The cubic root of 494457 is about 79.0756632356.

The spelling of 494457 in words is "four hundred ninety-four thousand, four hundred fifty-seven".