559999440 has 960 divisors, whose sum is σ = 2707326720. Its totient is φ = 104509440.

The previous prime is 559999421. The next prime is 559999441. The reversal of 559999440 is 44999955.

559999440 is a `hidden beast` number, since 5 + 599 + 9 + 9 + 4 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (559999441) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 15135102 + ... + 15135138.

It is an arithmetic number, because the mean of its divisors is an integer number (2820132).

Almost surely, 2^559999440 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 559999440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1353663360).

559999440 is an abundant number, since it is smaller than the sum of its proper divisors (2147327280).

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

559999440 is a wasteful number, since it uses less digits than its factorization.

559999440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 54.

The square root of 559999440 is about 23664.3073002359. The cubic root of 559999440 is about 824.2567852093.

It can be divided in two parts, 559 and 999440, that added together give a palindrome (999999).

The spelling of 559999440 in words is "five hundred fifty-nine million, nine hundred ninety-nine thousand, four hundred forty".