4012220 has 24 divisors (see below), whose sum is σ = 8530704. Its totient is φ = 1584896.

The previous prime is 4012213. The next prime is 4012241. The reversal of 4012220 is 222104.

4012220 = T₄₀ + T₄₁ + ... + T₂₈₈.

4012220 = 297² + 298² + ... + 336².

4012220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 452 + ... + 2868.

It is an arithmetic number, because the mean of its divisors is an integer number (355446).

Almost surely, 2^4012220 is an apocalyptic number.

It is an amenable number.

4012220 is an abundant number, since it is smaller than the sum of its proper divisors (4518484).

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

4012220 is a wasteful number, since it uses less digits than its factorization.

4012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509 (or 2507 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 4012220 is about 2003.0526703010. The cubic root of 4012220 is about 158.9015912022.

Adding to 4012220 its reverse (222104), we get a palindrome (4234324).

The spelling of 4012220 in words is "four million, twelve thousand, two hundred twenty".