4280022 has 48 divisors (see below), whose sum is σ = 10007712. Its totient is φ = 1317120.

The previous prime is 4280021. The next prime is 4280033. The reversal of 4280022 is 2200824.

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

It is a junction number, because it is equal to n+sod(n) for n = 4279977 and 4280004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4280021) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 21628 + ... + 21824.

It is an arithmetic number, because the mean of its divisors is an integer number (208494).

Almost surely, 2^4280022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4280022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5003856).

4280022 is an abundant number, since it is smaller than the sum of its proper divisors (5727690).

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

4280022 is a wasteful number, since it uses less digits than its factorization.

4280022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 4280022 is about 2068.8214036016. The cubic root of 4280022 is about 162.3611057738.

Adding to 4280022 its reverse (2200824), we get a palindrome (6480846).

The spelling of 4280022 in words is "four million, two hundred eighty thousand, twenty-two".