2163426 has 32 divisors (see below), whose sum is σ = 4606848. Its totient is φ = 675840.

The previous prime is 2163409. The next prime is 2163431. The reversal of 2163426 is 6243612.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁹ + 1 + 6 + 3 + 4⁸ + 2²¹ + 6³ .

It is a junction number, because it is equal to n+sod(n) for n = 2163396 and 2163405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8290 + ... + 8546.

It is an arithmetic number, because the mean of its divisors is an integer number (143964).

2^2163426 is an apocalyptic number.

2163426 is an abundant number, since it is smaller than the sum of its proper divisors (2443422).

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

2163426 is a wasteful number, since it uses less digits than its factorization.

2163426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346.

The product of its digits is 1728, while the sum is 24.

The square root of 2163426 is about 1470.8589327328. The cubic root of 2163426 is about 129.3343887563.

The spelling of 2163426 in words is "two million, one hundred sixty-three thousand, four hundred twenty-six".