8545020340 has 24 divisors (see below), whose sum is σ = 17967909960. Its totient is φ = 3413557248.

The previous prime is 8545020311. The next prime is 8545020359. The reversal of 8545020340 is 430205458.

It can be written as a sum of positive squares in 4 ways, for example, as 647498916 + 7897521424 = 25446^2 + 88868^2 .

It is a super-2 number, since 2×8545020340² (a number of 21 digits) 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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262417 + ... + 293176.

It is an arithmetic number, because the mean of its divisors is an integer number (748662915).

Almost surely, 2^8545020340 is an apocalyptic number.

It is an amenable number.

8545020340 is an abundant number, since it is smaller than the sum of its proper divisors (9422889620).

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

8545020340 is a wasteful number, since it uses less digits than its factorization.

8545020340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556371 (or 556369 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 8545020340 is about 92439.2792053248. The cubic root of 8545020340 is about 2044.4242965900.

Adding to 8545020340 its reverse (430205458), we get a palindrome (8975225798).

The spelling of 8545020340 in words is "eight billion, five hundred forty-five million, twenty thousand, three hundred forty".