3420502605 has 48 divisors (see below), whose sum is σ = 6505467696. Its totient is φ = 1652152320.

The previous prime is 3420502601. The next prime is 3420502619. The reversal of 3420502605 is 5062050243.

3420502605 is a `hidden beast` number, since 3 + 4 + 2 + 0 + 50 + 2 + 605 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 3164841 + 3417337764 = 1779^2 + 58458^2 .

It is not a de Polignac number, because 3420502605 - 2² = 3420502601 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420502601) 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 47 ways as a sum of consecutive naturals, for example, 24156 + ... + 86165.

It is an arithmetic number, because the mean of its divisors is an integer number (135530577).

Almost surely, 2^3420502605 is an apocalyptic number.

It is an amenable number.

3420502605 is a deficient number, since it is larger than the sum of its proper divisors (3084965091).

3420502605 is a wasteful number, since it uses less digits than its factorization.

3420502605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110398 (or 110395 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 3420502605 is about 58485.0630930668. The cubic root of 3420502605 is about 1506.7110563698.

Adding to 3420502605 its reverse (5062050243), we get a palindrome (8482552848).

The spelling of 3420502605 in words is "three billion, four hundred twenty million, five hundred two thousand, six hundred five".