565377640 has 32 divisors (see below), whose sum is σ = 1272833280. Its totient is φ = 226020672.

The previous prime is 565377629. The next prime is 565377643. The reversal of 565377640 is 46773565.

565377640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×565377640³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (565377643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97297 + ... + 102943.

It is an arithmetic number, because the mean of its divisors is an integer number (39776040).

Almost surely, 2^565377640 is an apocalyptic number.

It is an amenable number.

565377640 is an abundant number, since it is smaller than the sum of its proper divisors (707455640).

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

565377640 is a wasteful number, since it uses less digits than its factorization.

565377640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8161 (or 8157 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 43.

The square root of 565377640 is about 23777.6710381820. The cubic root of 565377640 is about 826.8870864130.

The spelling of 565377640 in words is "five hundred sixty-five million, three hundred seventy-seven thousand, six hundred forty".