3056420 has 12 divisors (see below), whose sum is σ = 6418524. Its totient is φ = 1222560.

The previous prime is 3056419. The next prime is 3056423. The reversal of 3056420 is 246503.

It can be written as a sum of positive squares in 2 ways, for example, as 1308736 + 1747684 = 1144^2 + 1322^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 152821 = 3056420 / (3 + 0 + 5 + 6 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 3056392 and 3056401.

It is not an unprimeable number, because it can be changed into a prime (3056423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76391 + ... + 76430.

It is an arithmetic number, because the mean of its divisors is an integer number (534877).

Almost surely, 2^3056420 is an apocalyptic number.

It is an amenable number.

3056420 is an abundant number, since it is smaller than the sum of its proper divisors (3362104).

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

3056420 is a wasteful number, since it uses less digits than its factorization.

3056420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152830 (or 152828 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 3056420 is about 1748.2619940959. The cubic root of 3056420 is about 145.1234778560.

The spelling of 3056420 in words is "three million, fifty-six thousand, four hundred twenty".