3020406 has 32 divisors (see below), whose sum is σ = 6462720. Its totient is φ = 938784.

The previous prime is 3020401. The next prime is 3020431. The reversal of 3020406 is 6040203.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5680 + ... + 6188.

It is an arithmetic number, because the mean of its divisors is an integer number (201960).

Almost surely, 2^3020406 is an apocalyptic number.

3020406 is an abundant number, since it is smaller than the sum of its proper divisors (3442314).

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

3020406 is a wasteful number, since it uses less digits than its factorization.

3020406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 3020406 is about 1737.9315291461. The cubic root of 3020406 is about 144.5512244407.

Adding to 3020406 its reverse (6040203), we get a palindrome (9060609).

The spelling of 3020406 in words is "three million, twenty thousand, four hundred six".