8210435140 has 24 divisors (see below), whose sum is σ = 17294018112. Its totient is φ = 3274249440.

The previous prime is 8210435131. The next prime is 8210435153. The reversal of 8210435140 is 415340128.

It is a super-2 number, since 2×8210435140² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8210435099 and 8210435108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613504 + ... + 626743.

It is an arithmetic number, because the mean of its divisors is an integer number (720584088).

Almost surely, 2^8210435140 is an apocalyptic number.

It is an amenable number.

8210435140 is an abundant number, since it is smaller than the sum of its proper divisors (9083582972).

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

8210435140 is a wasteful number, since it uses less digits than its factorization.

8210435140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240587 (or 1240585 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 8210435140 is about 90611.4514837943. The cubic root of 8210435140 is about 2017.3847097543.

Adding to 8210435140 its reverse (415340128), we get a palindrome (8625775268).

The spelling of 8210435140 in words is "eight billion, two hundred ten million, four hundred thirty-five thousand, one hundred forty".