457078 has 4 divisors (see below), whose sum is σ = 685620. Its totient is φ = 228538.

The previous prime is 457057. The next prime is 457087. The reversal of 457078 is 870754.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

457078 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 (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114268 + ... + 114271.

It is an arithmetic number, because the mean of its divisors is an integer number (171405).

2⁴⁵⁷⁰⁷⁸ is an apocalyptic number.

457078 is a deficient number, since it is larger than the sum of its proper divisors (228542).

457078 is a wasteful number, since it uses less digits than its factorization.

457078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228541.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 457078 is about 676.0754395776. The cubic root of 457078 is about 77.0306281708.

The spelling of 457078 in words is "four hundred fifty-seven thousand, seventy-eight".