457878 has 24 divisors (see below), whose sum is σ = 984312. Its totient is φ = 141504.

The previous prime is 457871. The next prime is 457889. The reversal of 457878 is 878754.

457878 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457871) by changing a digit.

457878 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 11 ways as a sum of consecutive naturals, for example, 6801 + ... + 6867.

It is an arithmetic number, because the mean of its divisors is an integer number (41013).

2⁴⁵⁷⁸⁷⁸ is an apocalyptic number.

457878 is an abundant number, since it is smaller than the sum of its proper divisors (526434).

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

457878 is a wasteful number, since it uses less digits than its factorization.

457878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 89 counting only the distinct ones).

The product of its digits is 62720, while the sum is 39.

The square root of 457878 is about 676.6668308703. Note that the first 3 decimals coincide. The cubic root of 457878 is about 77.0755428861.

It can be divided in two parts, 4578 and 78, that added together give a triangular number (4656 = T₉₆).

The spelling of 457878 in words is "four hundred fifty-seven thousand, eight hundred seventy-eight".