4022550 has 72 divisors (see below), whose sum is σ = 12360816. Its totient is φ = 918720.

The previous prime is 4022549. The next prime is 4022563. The reversal of 4022550 is 552204.

4022550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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 35 ways as a sum of consecutive naturals, for example, 2512 + ... + 3788.

It is an arithmetic number, because the mean of its divisors is an integer number (171678).

Almost surely, 2^4022550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4022550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6180408).

4022550 is an abundant number, since it is smaller than the sum of its proper divisors (8338266).

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

4022550 is a wasteful number, since it uses less digits than its factorization.

4022550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302 (or 1294 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 4022550 is about 2005.6295769658. The cubic root of 4022550 is about 159.0378455065.

Adding to 4022550 its reverse (552204), we get a palindrome (4574754).

The spelling of 4022550 in words is "four million, twenty-two thousand, five hundred fifty".