4064420 has 12 divisors (see below), whose sum is σ = 8535324. Its totient is φ = 1625760.

The previous prime is 4064407. The next prime is 4064447. The reversal of 4064420 is 244604.

It can be written as a sum of positive squares in 2 ways, for example, as 817216 + 3247204 = 904^2 + 1802^2 .

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: 203221 = 4064420 / (4 + 0 + 6 + 4 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 4064392 and 4064401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101591 + ... + 101630.

It is an arithmetic number, because the mean of its divisors is an integer number (711277).

Almost surely, 2^4064420 is an apocalyptic number.

It is an amenable number.

4064420 is an abundant number, since it is smaller than the sum of its proper divisors (4470904).

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

4064420 is a wasteful number, since it uses less digits than its factorization.

4064420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203230 (or 203228 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4064420 is about 2016.0406741929. The cubic root of 4064420 is about 159.5877407602.

The spelling of 4064420 in words is "four million, sixty-four thousand, four hundred twenty".