4262220 has 72 divisors (see below), whose sum is σ = 13422864. Its totient is φ = 1135296.

The previous prime is 4262197. The next prime is 4262233. The reversal of 4262220 is 222624.

It is a happy number.

4262220 is a `hidden beast` number, since 42 + 622 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 4262193 and 4262202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4422 + ... + 5298.

Almost surely, 2^4262220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4262220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6711432).

4262220 is an abundant number, since it is smaller than the sum of its proper divisors (9160644).

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

4262220 is a wasteful number, since it uses less digits than its factorization.

4262220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4262220 is about 2064.5144707655. The cubic root of 4262220 is about 162.1356887865.

Adding to 4262220 its reverse (222624), we get a palindrome (4484844).

The spelling of 4262220 in words is "four million, two hundred sixty-two thousand, two hundred twenty".