7222650 has 48 divisors (see below), whose sum is σ = 18079200. Its totient is φ = 1908160.

The previous prime is 7222643. The next prime is 7222661. The reversal of 7222650 is 562227.

It is a d-powerful number, because it can be written as 7⁸ + 2¹¹ + 2¹⁴ + 2²⁰ + 6³ + 5⁸ + 0 .

It is a nialpdrome in base 5.

It is a zygodrome in base 5.

It is a self number, because there is not a number n which added to its sum of digits gives 7222650.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26716 + ... + 26984.

It is an arithmetic number, because the mean of its divisors is an integer number (376650).

Almost surely, 2^7222650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7222650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9039600).

7222650 is an abundant number, since it is smaller than the sum of its proper divisors (10856550).

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

7222650 is a wasteful number, since it uses less digits than its factorization.

7222650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 7222650 is about 2687.4988372091. The cubic root of 7222650 is about 193.3001495431.

Adding to 7222650 its reverse (562227), we get a palindrome (7784877).

It can be divided in two parts, 72 and 22650, that added together give a palindrome (22722).

The spelling of 7222650 in words is "seven million, two hundred twenty-two thousand, six hundred fifty".