4045220 has 24 divisors (see below), whose sum is σ = 8542464. Its totient is φ = 1609056.

The previous prime is 4045219. The next prime is 4045229. The reversal of 4045220 is 225404.

4045220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (4045229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4007 + ... + 4913.

It is an arithmetic number, because the mean of its divisors is an integer number (355936).

Almost surely, 2^4045220 is an apocalyptic number.

It is an amenable number.

4045220 is an abundant number, since it is smaller than the sum of its proper divisors (4497244).

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

4045220 is a wasteful number, since it uses less digits than its factorization.

4045220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 4045220 is about 2011.2732285793. The cubic root of 4045220 is about 159.3360507153.

The spelling of 4045220 in words is "four million, forty-five thousand, two hundred twenty".