561299024 has 120 divisors (see below), whose sum is σ = 1303791552. Its totient is φ = 232028160.

The previous prime is 561299023. The next prime is 561299077. The reversal of 561299024 is 420992165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561299023) 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, 3360989 + ... + 3361155.

Almost surely, 2^561299024 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 561299024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (651895776).

561299024 is an abundant number, since it is smaller than the sum of its proper divisors (742492528).

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

561299024 is a wasteful number, since it uses less digits than its factorization.

561299024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 561299024 is about 23691.7501253073. The cubic root of 561299024 is about 824.8939068960.

The spelling of 561299024 in words is "five hundred sixty-one million, two hundred ninety-nine thousand, twenty-four".