4512640840 has 32 divisors (see below), whose sum is σ = 10230960960. Its totient is φ = 1791275200.

The previous prime is 4512640801. The next prime is 4512640849. The reversal of 4512640840 is 480462154.

It is a junction number, because it is equal to n+sod(n) for n = 4512640796 and 4512640805.

It is not an unprimeable number, because it can be changed into a prime (4512640849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425356 + ... + 435835.

It is an arithmetic number, because the mean of its divisors is an integer number (319717530).

Almost surely, 2^4512640840 is an apocalyptic number.

4512640840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4512640840 is an abundant number, since it is smaller than the sum of its proper divisors (5718320120).

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

4512640840 is a wasteful number, since it uses less digits than its factorization.

4512640840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861333 (or 861329 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 4512640840 is about 67176.1925089536. The cubic root of 4512640840 is about 1652.5080730447.

The spelling of 4512640840 in words is "four billion, five hundred twelve million, six hundred forty thousand, eight hundred forty".