457018 has 4 divisors (see below), whose sum is σ = 685530. Its totient is φ = 228508.

The previous prime is 457013. The next prime is 457021. The reversal of 457018 is 810754.

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

It can be written as a sum of positive squares in only one way, i.e., 233289 + 223729 = 483^2 + 473^2 .

It is a junction number, because it is equal to n+sod(n) for n = 456983 and 457001.

It is not an unprimeable number, because it can be changed into a prime (457013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114253 + ... + 114256.

2⁴⁵⁷⁰¹⁸ is an apocalyptic number.

457018 is a deficient number, since it is larger than the sum of its proper divisors (228512).

457018 is a wasteful number, since it uses less digits than its factorization.

457018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228511.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 457018 is about 676.0310643750. The cubic root of 457018 is about 77.0272574551.

The spelling of 457018 in words is "four hundred fifty-seven thousand, eighteen".