457378 has 16 divisors (see below), whose sum is σ = 732096. Its totient is φ = 213840.

The previous prime is 457367. The next prime is 457381. The reversal of 457378 is 873754.

It is an unprimeable number.

457378 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, 2725 + ... + 2887.

It is an arithmetic number, because the mean of its divisors is an integer number (45756).

457378 is a Friedman number, since it can be written as 845+77^3, using all its digits and the basic arithmetic operations.

2⁴⁵⁷³⁷⁸ is an apocalyptic number.

457378 is a deficient number, since it is larger than the sum of its proper divisors (274718).

457378 is a wasteful number, since it uses less digits than its factorization.

457378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249.

The product of its digits is 23520, while the sum is 34.

The square root of 457378 is about 676.2972719152. The cubic root of 457378 is about 77.0474773260.

The spelling of 457378 in words is "four hundred fifty-seven thousand, three hundred seventy-eight".