7204122 has 48 divisors (see below), whose sum is σ = 16628040. Its totient is φ = 2249856.

The previous prime is 7204117. The next prime is 7204123. The reversal of 7204122 is 2214027.

It can be written as a sum of positive squares in 4 ways, for example, as 7080921 + 123201 = 2661^2 + 351^2 .

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 = 7204095 and 7204104.

It is not an unprimeable number, because it can be changed into a prime (7204123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19128 + ... + 19500.

Almost surely, 2^7204122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7204122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8314020).

7204122 is an abundant number, since it is smaller than the sum of its proper divisors (9423918).

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

7204122 is a wasteful number, since it uses less digits than its factorization.

7204122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 7204122 is about 2684.0495524487. The cubic root of 7204122 is about 193.1347194028.

Adding to 7204122 its reverse (2214027), we get a palindrome (9418149).

The spelling of 7204122 in words is "seven million, two hundred four thousand, one hundred twenty-two".