4340205640 has 32 divisors (see below), whose sum is σ = 9781765560. Its totient is φ = 1733184000.

The previous prime is 4340205619. The next prime is 4340205659. The reversal of 4340205640 is 465020434.

It can be written as a sum of positive squares in 4 ways, for example, as 3451092516 + 889113124 = 58746^2 + 29818^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4340205599 and 4340205608.

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, 66231 + ... + 114310.

Almost surely, 2^4340205640 is an apocalyptic number.

4340205640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4340205640 is an abundant number, since it is smaller than the sum of its proper divisors (5441559920).

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

4340205640 is a wasteful number, since it uses less digits than its factorization.

4340205640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181153 (or 181149 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 4340205640 is about 65880.2370973268. The cubic root of 4340205640 is about 1631.1858133217.

The spelling of 4340205640 in words is "four billion, three hundred forty million, two hundred five thousand, six hundred forty".