566878420 has 24 divisors (see below), whose sum is σ = 1194213384. Its totient is φ = 226033536.

The previous prime is 566878409. The next prime is 566878439. The reversal of 566878420 is 24878665.

It can be written as a sum of positive squares in 4 ways, for example, as 248004 + 566630416 = 498^2 + 23804^2 .

It is a super-2 number, since 2×566878420² = 642702286123392800, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 38367 + ... + 51046.

It is an arithmetic number, because the mean of its divisors is an integer number (49758891).

Almost surely, 2^566878420 is an apocalyptic number.

It is an amenable number.

566878420 is an abundant number, since it is smaller than the sum of its proper divisors (627334964).

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

566878420 is a wasteful number, since it uses less digits than its factorization.

566878420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89739 (or 89737 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 566878420 is about 23809.2087226770. The cubic root of 566878420 is about 827.6180899550.

The spelling of 566878420 in words is "five hundred sixty-six million, eight hundred seventy-eight thousand, four hundred twenty".