7220032 has 28 divisors (see below), whose sum is σ = 14719300. Its totient is φ = 3511296.

The previous prime is 7220027. The next prime is 7220033. The reversal of 7220032 is 2300227.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3625216 + 3594816 = 1904^2 + 1896^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 7219988 and 7220015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7220033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 844 + ... + 3892.

Almost surely, 2^7220032 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 7220032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7359650).

7220032 is an abundant number, since it is smaller than the sum of its proper divisors (7499268).

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

7220032 is a wasteful number, since it uses less digits than its factorization.

7220032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098 (or 3088 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 7220032 is about 2687.0117230857. The cubic root of 7220032 is about 193.2767914983.

Adding to 7220032 its reverse (2300227), we get a palindrome (9520259).

It can be divided in two parts, 72200 and 32, that multiplied together give a square (2310400 = 1520²).

The spelling of 7220032 in words is "seven million, two hundred twenty thousand, thirty-two".