564450 has 48 divisors (see below), whose sum is σ = 1446336. Its totient is φ = 145600.

The previous prime is 564449. The next prime is 564457. The reversal of 564450 is 54465.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 564450.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 564450.

It is not an unprimeable number, because it can be changed into a prime (564457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7915 + ... + 7985.

It is an arithmetic number, because the mean of its divisors is an integer number (30132).

2⁵⁶⁴⁴⁵⁰ is an apocalyptic number.

564450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 564450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (723168).

564450 is an abundant number, since it is smaller than the sum of its proper divisors (881886).

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

564450 is a wasteful number, since it uses less digits than its factorization.

564450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 564450 is about 751.2988752820. The cubic root of 564450 is about 82.6434602163.

The spelling of 564450 in words is "five hundred sixty-four thousand, four hundred fifty".