7601220 has 108 divisors (see below), whose sum is σ = 25416300. Its totient is φ = 1837440.

The previous prime is 7601213. The next prime is 7601249. The reversal of 7601220 is 221067.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4186116 + 3415104 = 2046^2 + 1848^2 .

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 = 7601193 and 7601202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21606 + ... + 21954.

Almost surely, 2^7601220 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 7601220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12708150).

7601220 is an abundant number, since it is smaller than the sum of its proper divisors (17815080).

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

7601220 is a wasteful number, since it uses less digits than its factorization.

7601220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 7601220 is about 2757.0310117951. The cubic root of 7601220 is about 196.6200342691.

Adding to 7601220 its reverse (221067), we get a palindrome (7822287).

The spelling of 7601220 in words is "seven million, six hundred one thousand, two hundred twenty".