562640 has 40 divisors (see below), whose sum is σ = 1411368. Its totient is φ = 207360.

The previous prime is 562633. The next prime is 562651. The reversal of 562640 is 46265.

It can be written as a sum of positive squares in 4 ways, for example, as 3136 + 559504 = 56^2 + 748^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 770 + ... + 1310.

2⁵⁶²⁶⁴⁰ 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 562640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (705684).

562640 is an abundant number, since it is smaller than the sum of its proper divisors (848728).

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

562640 is a wasteful number, since it uses less digits than its factorization.

562640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 561 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 562640 is about 750.0933275266. The cubic root of 562640 is about 82.5550290960. Note that the first 3 decimals are identical.

The spelling of 562640 in words is "five hundred sixty-two thousand, six hundred forty".