2128862 has 4 divisors (see below), whose sum is σ = 3193296. Its totient is φ = 1064430.

The previous prime is 2128849. The next prime is 2128871. The reversal of 2128862 is 2688212.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532214 + ... + 532217.

It is an arithmetic number, because the mean of its divisors is an integer number (798324).

2^2128862 is an apocalyptic number.

2128862 is a deficient number, since it is larger than the sum of its proper divisors (1064434).

2128862 is a wasteful number, since it uses less digits than its factorization.

2128862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064433.

The product of its digits is 3072, while the sum is 29.

The square root of 2128862 is about 1459.0620274683. The cubic root of 2128862 is about 128.6419170212.

The spelling of 2128862 in words is "two million, one hundred twenty-eight thousand, eight hundred sixty-two".