565816340 has 96 divisors (see below), whose sum is σ = 1273273344. Its totient is φ = 210862080.

The previous prime is 565816289. The next prime is 565816351. The reversal of 565816340 is 43618565.

It is a super-2 number, since 2×565816340² = 640296261221991200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 565816294 and 565816303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2201492 + ... + 2201748.

It is an arithmetic number, because the mean of its divisors is an integer number (13263264).

Almost surely, 2^565816340 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 565816340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (636636672).

565816340 is an abundant number, since it is smaller than the sum of its proper divisors (707457004).

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

565816340 is a wasteful number, since it uses less digits than its factorization.

565816340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 565816340 is about 23786.8942907644. The cubic root of 565816340 is about 827.1009031341.

The spelling of 565816340 in words is "five hundred sixty-five million, eight hundred sixteen thousand, three hundred forty".