455218 has 4 divisors (see below), whose sum is σ = 682830. Its totient is φ = 227608.

The previous prime is 455201. The next prime is 455219. The reversal of 455218 is 812554.

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., 380689 + 74529 = 617^2 + 273^2 .

It is a junction number, because it is equal to n+sod(n) for n = 455192 and 455201.

It is not an unprimeable number, because it can be changed into a prime (455219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113803 + ... + 113806.

2⁴⁵⁵²¹⁸ is an apocalyptic number.

455218 is a deficient number, since it is larger than the sum of its proper divisors (227612).

455218 is a wasteful number, since it uses less digits than its factorization.

455218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227611.

The product of its digits is 1600, while the sum is 25.

The square root of 455218 is about 674.6984511617. The cubic root of 455218 is about 76.9259985044.

The spelling of 455218 in words is "four hundred fifty-five thousand, two hundred eighteen".