2251128 has 32 divisors (see below), whose sum is σ = 6140160. Its totient is φ = 682080.

The previous prime is 2251121. The next prime is 2251129. The reversal of 2251128 is 8211522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4000 + ... + 4527.

It is an arithmetic number, because the mean of its divisors is an integer number (191880).

2^2251128 is an apocalyptic number.

It is an amenable number.

2251128 is an abundant number, since it is smaller than the sum of its proper divisors (3889032).

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

2251128 is a wasteful number, since it uses less digits than its factorization.

2251128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8547 (or 8543 counting only the distinct ones).

The product of its digits is 320, while the sum is 21.

The square root of 2251128 is about 1500.3759528865. The cubic root of 2251128 is about 131.0589638024.

The spelling of 2251128 in words is "two million, two hundred fifty-one thousand, one hundred twenty-eight".