2258128 has 20 divisors (see below), whose sum is σ = 4419360. Its totient is φ = 1117664.

The previous prime is 2258119. The next prime is 2258129. The reversal of 2258128 is 8218522.

It is a junction number, because it is equal to n+sod(n) for n = 2258096 and 2258105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2258129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1053 + ... + 2371.

It is an arithmetic number, because the mean of its divisors is an integer number (220968).

2^2258128 is an apocalyptic number.

It is an amenable number.

2258128 is a deficient number, since it is larger than the sum of its proper divisors (2161232).

2258128 is a wasteful number, since it uses less digits than its factorization.

2258128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434 (or 1428 counting only the distinct ones).

The product of its digits is 2560, while the sum is 28.

The square root of 2258128 is about 1502.7068909139. The cubic root of 2258128 is about 131.1946681355.

The spelling of 2258128 in words is "two million, two hundred fifty-eight thousand, one hundred twenty-eight".