457428 has 12 divisors (see below), whose sum is σ = 1067360. Its totient is φ = 152472.

The previous prime is 457421. The next prime is 457433. The reversal of 457428 is 824754.

457428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a d-powerful number, because it can be written as 4⁸ + 5⁷ + 4⁹ + 7⁵ + 2¹¹ + 8⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 457395 and 457404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457421) by changing a digit.

457428 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19048 + ... + 19071.

2⁴⁵⁷⁴²⁸ is an apocalyptic number.

It is an amenable number.

457428 is an abundant number, since it is smaller than the sum of its proper divisors (609932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

457428 is a wasteful number, since it uses less digits than its factorization.

457428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38126 (or 38124 counting only the distinct ones).

The product of its digits is 8960, while the sum is 30.

The square root of 457428 is about 676.3342368977. The cubic root of 457428 is about 77.0502848021.

The spelling of 457428 in words is "four hundred fifty-seven thousand, four hundred twenty-eight".