455620 has 48 divisors (see below), whose sum is σ = 1108800. Its totient is φ = 155520.

The previous prime is 455603. The next prime is 455627. The reversal of 455620 is 26554.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 455591 and 455600.

It is not an unprimeable number, because it can be changed into a prime (455627) 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 in 15 ways as a sum of consecutive naturals, for example, 4126 + ... + 4234.

It is an arithmetic number, because the mean of its divisors is an integer number (23100).

2⁴⁵⁵⁶²⁰ 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 455620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554400).

455620 is an abundant number, since it is smaller than the sum of its proper divisors (653180).

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

455620 is a wasteful number, since it uses less digits than its factorization.

455620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 455620 is about 674.9962962861. The cubic root of 455620 is about 76.9486361219.

It can be divided in two parts, 45 and 5620, that added together give a palindrome (5665).

The spelling of 455620 in words is "four hundred fifty-five thousand, six hundred twenty".