457478 has 16 divisors (see below), whose sum is σ = 804384. Its totient is φ = 191040.

The previous prime is 457469. The next prime is 457507. The reversal of 457478 is 874754.

It is a happy number.

It is a super-2 number, since 2×457478² = 418572240968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

457478 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176 + ... + 972.

It is an arithmetic number, because the mean of its divisors is an integer number (50274).

2⁴⁵⁷⁴⁷⁸ is an apocalyptic number.

457478 is a deficient number, since it is larger than the sum of its proper divisors (346906).

457478 is a wasteful number, since it uses less digits than its factorization.

457478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847.

The product of its digits is 31360, while the sum is 35.

The square root of 457478 is about 676.3711998600. The cubic root of 457478 is about 77.0530920737.

The spelling of 457478 in words is "four hundred fifty-seven thousand, four hundred seventy-eight".