453820 has 12 divisors (see below), whose sum is σ = 953064. Its totient is φ = 181520.

The previous prime is 453799. The next prime is 453823. The reversal of 453820 is 28354.

453820 = T₂₆₉ + T₂₇₀ + ... + T₂₈₀.

It is a junction number, because it is equal to n+sod(n) for n = 453791 and 453800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11326 + ... + 11365.

It is an arithmetic number, because the mean of its divisors is an integer number (79422).

2⁴⁵³⁸²⁰ is an apocalyptic number.

It is an amenable number.

453820 is an abundant number, since it is smaller than the sum of its proper divisors (499244).

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

453820 is a wasteful number, since it uses less digits than its factorization.

453820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22700 (or 22698 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 453820 is about 673.6616361349. The cubic root of 453820 is about 76.8471697353.

It can be divided in two parts, 4 and 53820, that added together give a square (53824 = 232²).

The spelling of 453820 in words is "four hundred fifty-three thousand, eight hundred twenty".