2128312 has 16 divisors (see below), whose sum is σ = 4011840. Its totient is φ = 1058496.

The previous prime is 2128309. The next prime is 2128319. The reversal of 2128312 is 2138212.

2128312 = 11⁴ + 12⁴ + ... + 25⁴.

It is a self number, because there is not a number n which added to its sum of digits gives 2128312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128319) 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, 1188 + ... + 2380.

It is an arithmetic number, because the mean of its divisors is an integer number (250740).

2^2128312 is an apocalyptic number.

It is an amenable number.

2128312 is a deficient number, since it is larger than the sum of its proper divisors (1883528).

2128312 is a wasteful number, since it uses less digits than its factorization.

2128312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422 (or 1418 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 2128312 is about 1458.8735380423. The cubic root of 2128312 is about 128.6308376827.

The spelling of 2128312 in words is "two million, one hundred twenty-eight thousand, three hundred twelve".