2016423 has 6 divisors (see below), whose sum is σ = 2912624. Its totient is φ = 1344276.

The previous prime is 2016419. The next prime is 2016439. The reversal of 2016423 is 3246102.

It is a happy number.

2016423 is a `hidden beast` number, since 20 + 1 + 642 + 3 = 666.

It is not a de Polignac number, because 2016423 - 2² = 2016419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2016396 and 2016405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2016403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112015 + ... + 112032.

2^2016423 is an apocalyptic number.

2016423 is a deficient number, since it is larger than the sum of its proper divisors (896201).

2016423 is a wasteful number, since it uses less digits than its factorization.

2016423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224053 (or 224050 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2016423 is about 1420.0080985685. The cubic root of 2016423 is about 126.3360267192.

The spelling of 2016423 in words is "two million, sixteen thousand, four hundred twenty-three".