561460 has 24 divisors (see below), whose sum is σ = 1199520. Its totient is φ = 220704.

The previous prime is 561439. The next prime is 561461. The reversal of 561460 is 64165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561461) by changing a digit.

561460 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1131 + ... + 1549.

It is an arithmetic number, because the mean of its divisors is an integer number (49980).

2⁵⁶¹⁴⁶⁰ is an apocalyptic number.

It is an amenable number.

561460 is an abundant number, since it is smaller than the sum of its proper divisors (638060).

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

561460 is a wasteful number, since it uses less digits than its factorization.

561460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 493 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 561460 is about 749.3063458960. The cubic root of 561460 is about 82.4972756982.

The spelling of 561460 in words is "five hundred sixty-one thousand, four hundred sixty".