16424019 has 8 divisors (see below), whose sum is σ = 24331920. Its totient is φ = 10949328.

The previous prime is 16424003. The next prime is 16424027. The reversal of 16424019 is 91042461.

16424019 is a `hidden beast` number, since 1 + 642 + 4 + 0 + 19 = 666.

It is not a de Polignac number, because 16424019 - 2⁴ = 16424003 is a prime.

It is a super-2 number, since 2×16424019² = 539496800224722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 608297 = 16424019 / (1 + 6 + 4 + 2 + 4 + 0 + 1 + 9).

It is a junction number, because it is equal to n+sod(n) for n = 16423983 and 16424001.

It is not an unprimeable number, because it can be changed into a prime (16424039) 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, 304122 + ... + 304175.

It is an arithmetic number, because the mean of its divisors is an integer number (3041490).

Almost surely, 2^16424019 is an apocalyptic number.

16424019 is a deficient number, since it is larger than the sum of its proper divisors (7907901).

16424019 is an equidigital number, since it uses as much as digits as its factorization.

16424019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608306 (or 608300 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 16424019 is about 4052.6557958948. The cubic root of 16424019 is about 254.1907912005.

The spelling of 16424019 in words is "sixteen million, four hundred twenty-four thousand, nineteen".