2530220 has 96 divisors (see below), whose sum is σ = 6967296. Its totient is φ = 748800.

The previous prime is 2530201. The next prime is 2530223. The reversal of 2530220 is 220352.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2530195 and 2530204.

It is not an unprimeable number, because it can be changed into a prime (2530223) 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, 47714 + ... + 47766.

It is an arithmetic number, because the mean of its divisors is an integer number (72576).

2^2530220 is an apocalyptic number.

2530220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2530220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3483648).

2530220 is an abundant number, since it is smaller than the sum of its proper divisors (4437076).

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

2530220 is a wasteful number, since it uses less digits than its factorization.

2530220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 2530220 is about 1590.6665269628. Note that the first 3 decimals coincide. The cubic root of 2530220 is about 136.2655566784.

Adding to 2530220 its reverse (220352), we get a palindrome (2750572).

The spelling of 2530220 in words is "two million, five hundred thirty thousand, two hundred twenty".