2128922 has 8 divisors (see below), whose sum is σ = 3211572. Its totient is φ = 1058400.

The previous prime is 2128891. The next prime is 2128933. The reversal of 2128922 is 2298212.

It can be written as a sum of positive squares in 2 ways, for example, as 2076481 + 52441 = 1441^2 + 229^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2128891 and 2128900.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2579 + ... + 3302.

2^2128922 is an apocalyptic number.

2128922 is a deficient number, since it is larger than the sum of its proper divisors (1082650).

2128922 is a wasteful number, since it uses less digits than its factorization.

2128922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6064.

The product of its digits is 1152, while the sum is 26.

The square root of 2128922 is about 1459.0825884781. The cubic root of 2128922 is about 128.6431255609.

The spelling of 2128922 in words is "two million, one hundred twenty-eight thousand, nine hundred twenty-two".