2529220 has 12 divisors (see below), whose sum is σ = 5311404. Its totient is φ = 1011680.

The previous prime is 2529199. The next prime is 2529227. The reversal of 2529220 is 229252.

2529220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1132096 + 1397124 = 1064^2 + 1182^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2529191 and 2529200.

It is not an unprimeable number, because it can be changed into a prime (2529227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63211 + ... + 63250.

It is an arithmetic number, because the mean of its divisors is an integer number (442617).

2^2529220 is an apocalyptic number.

2529220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2529220 is an abundant number, since it is smaller than the sum of its proper divisors (2782184).

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

2529220 is a wasteful number, since it uses less digits than its factorization.

2529220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126470 (or 126468 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2529220 is about 1590.3521622584. The cubic root of 2529220 is about 136.2476025726.

Subtracting from 2529220 its reverse (229252), we obtain a cube (2299968 = 132³).

The spelling of 2529220 in words is "two million, five hundred twenty-nine thousand, two hundred twenty".