3420530 has 16 divisors (see below), whose sum is σ = 6179544. Its totient is φ = 1363200.

The previous prime is 3420523. The next prime is 3420533. The reversal of 3420530 is 350243.

It can be written as a sum of positive squares in 4 ways, for example, as 2920681 + 499849 = 1709^2 + 707^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3420499 and 3420508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3584 + ... + 4436.

Almost surely, 2^3420530 is an apocalyptic number.

3420530 is a deficient number, since it is larger than the sum of its proper divisors (2759014).

3420530 is a wasteful number, since it uses less digits than its factorization.

3420530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 3420530 is about 1849.4674909281. The cubic root of 3420530 is about 150.6715078804.

Adding to 3420530 its reverse (350243), we get a palindrome (3770773).

The spelling of 3420530 in words is "three million, four hundred twenty thousand, five hundred thirty".