455438 has 4 divisors (see below), whose sum is σ = 683160. Its totient is φ = 227718.

The previous prime is 455437. The next prime is 455443. The reversal of 455438 is 834554.

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

It is a self number, because there is not a number n which added to its sum of digits gives 455438.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 455438.

It is not an unprimeable number, because it can be changed into a prime (455431) by changing a digit.

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 as a sum of consecutive naturals, namely, 113858 + ... + 113861.

It is an arithmetic number, because the mean of its divisors is an integer number (170790).

2⁴⁵⁵⁴³⁸ is an apocalyptic number.

455438 is a deficient number, since it is larger than the sum of its proper divisors (227722).

455438 is a wasteful number, since it uses less digits than its factorization.

455438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227721.

The product of its digits is 9600, while the sum is 29.

The square root of 455438 is about 674.8614672657. The cubic root of 455438 is about 76.9383889006.

The spelling of 455438 in words is "four hundred fifty-five thousand, four hundred thirty-eight".