564390 has 24 divisors (see below), whose sum is σ = 1467648. Its totient is φ = 150480.

The previous prime is 564373. The next prime is 564391. The reversal of 564390 is 93465.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3046 + ... + 3225.

It is an arithmetic number, because the mean of its divisors is an integer number (61152).

2⁵⁶⁴³⁹⁰ is an apocalyptic number.

564390 is an abundant number, since it is smaller than the sum of its proper divisors (903258).

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

564390 is a wasteful number, since it uses less digits than its factorization.

564390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6284 (or 6281 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 564390 is about 751.2589433744. The cubic root of 564390 is about 82.6405318298.

The spelling of 564390 in words is "five hundred sixty-four thousand, three hundred ninety".