2558228 has 18 divisors (see below), whose sum is σ = 4757886. Its totient is φ = 1203328.

The previous prime is 2558219. The next prime is 2558233. The reversal of 2558228 is 8228552.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1898884 + 659344 = 1378^2 + 812^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2558194 and 2558203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50 + ... + 2262.

It is an arithmetic number, because the mean of its divisors is an integer number (264327).

2^2558228 is an apocalyptic number.

It is an amenable number.

2558228 is a deficient number, since it is larger than the sum of its proper divisors (2199658).

2558228 is a wasteful number, since it uses less digits than its factorization.

2558228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251 (or 2232 counting only the distinct ones).

The product of its digits is 12800, while the sum is 32.

The square root of 2558228 is about 1599.4461541421. The cubic root of 2558228 is about 136.7665051427.

The spelling of 2558228 in words is "two million, five hundred fifty-eight thousand, two hundred twenty-eight".