5120220 has 96 divisors (see below), whose sum is σ = 16708608. Its totient is φ = 1147392.

The previous prime is 5120201. The next prime is 5120221. The reversal of 5120220 is 220215.

5120220 = 228² + 229² + ... + 300².

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 5120196 and 5120205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5120221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30577 + ... + 30743.

It is an arithmetic number, because the mean of its divisors is an integer number (174048).

Almost surely, 2^5120220 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 5120220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8354304).

5120220 is an abundant number, since it is smaller than the sum of its proper divisors (11588388).

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

5120220 is a wasteful number, since it uses less digits than its factorization.

5120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 5120220 is about 2262.7903128660. The cubic root of 5120220 is about 172.3572437903.

Adding to 5120220 its reverse (220215), we get a palindrome (5340435).

The spelling of 5120220 in words is "five million, one hundred twenty thousand, two hundred twenty".