4519220 has 12 divisors (see below), whose sum is σ = 9490404. Its totient is φ = 1807680.

The previous prime is 4519189. The next prime is 4519231. The reversal of 4519220 is 229154.

4519220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 630436 + 3888784 = 794^2 + 1972^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112961 + ... + 113000.

It is an arithmetic number, because the mean of its divisors is an integer number (790867).

Almost surely, 2^4519220 is an apocalyptic number.

It is an amenable number.

4519220 is an abundant number, since it is smaller than the sum of its proper divisors (4971184).

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

4519220 is a wasteful number, since it uses less digits than its factorization.

4519220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225970 (or 225968 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 4519220 is about 2125.8457140630. The cubic root of 4519220 is about 165.3310769001.

It can be divided in two parts, 45192 and 20, that multiplied together give a triangular number (903840 = T₁₃₄₄).

The spelling of 4519220 in words is "four million, five hundred nineteen thousand, two hundred twenty".