2163430 has 16 divisors (see below), whose sum is σ = 3953520. Its totient is φ = 852192.

The previous prime is 2163409. The next prime is 2163431. The reversal of 2163430 is 343612.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2163398 and 2163407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163431) 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, 945 + ... + 2284.

It is an arithmetic number, because the mean of its divisors is an integer number (247095).

2^2163430 is an apocalyptic number.

2163430 is a deficient number, since it is larger than the sum of its proper divisors (1790090).

2163430 is a wasteful number, since it uses less digits than its factorization.

2163430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3303.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2163430 is about 1470.8602924819. The cubic root of 2163430 is about 129.3344684658.

The spelling of 2163430 in words is "two million, one hundred sixty-three thousand, four hundred thirty".