453816 has 64 divisors (see below), whose sum is σ = 1382400. Its totient is φ = 136800.

The previous prime is 453799. The next prime is 453823. The reversal of 453816 is 618354.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 453816.

It is a congruent number.

It is an unprimeable 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 15 ways as a sum of consecutive naturals, for example, 2281 + ... + 2471.

It is an arithmetic number, because the mean of its divisors is an integer number (21600).

2⁴⁵³⁸¹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 453816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (691200).

453816 is an abundant number, since it is smaller than the sum of its proper divisors (928584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

453816 is a wasteful number, since it uses less digits than its factorization.

453816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 207 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 453816 is about 673.6586672789. The cubic root of 453816 is about 76.8469439559.

It can be divided in two parts, 4538 and 16, that added together give a palindrome (4554).

The spelling of 453816 in words is "four hundred fifty-three thousand, eight hundred sixteen".