3405443540 has 24 divisors (see below), whose sum is σ = 7177260552. Its totient is φ = 1357257600.

The previous prime is 3405443539. The next prime is 3405443543. The reversal of 3405443540 is 453445043.

It can be written as a sum of positive squares in 4 ways, for example, as 458473744 + 2946969796 = 21412^2 + 54286^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3405443497 and 3405443506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3405443543) by changing a digit.

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, 301811 + ... + 312890.

It is an arithmetic number, because the mean of its divisors is an integer number (299052523).

Almost surely, 2^3405443540 is an apocalyptic number.

It is an amenable number.

3405443540 is an abundant number, since it is smaller than the sum of its proper divisors (3771817012).

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

3405443540 is a wasteful number, since it uses less digits than its factorization.

3405443540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614987 (or 614985 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 32.

The square root of 3405443540 is about 58356.1782504646. The cubic root of 3405443540 is about 1504.4966606329.

Adding to 3405443540 its reverse (453445043), we get a palindrome (3858888583).

The spelling of 3405443540 in words is "three billion, four hundred five million, four hundred forty-three thousand, five hundred forty".