16872442 has 8 divisors (see below), whose sum is σ = 25593300. Its totient is φ = 8341344.

The previous prime is 16872439. The next prime is 16872451. The reversal of 16872442 is 24427861.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16736281 + 136161 = 4091^2 + 369^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 16872398 and 16872407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47217 + ... + 47572.

Almost surely, 2^16872442 is an apocalyptic number.

16872442 is a deficient number, since it is larger than the sum of its proper divisors (8720858).

16872442 is an equidigital number, since it uses as much as digits as its factorization.

16872442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94880.

The product of its digits is 21504, while the sum is 34.

The square root of 16872442 is about 4107.6078196439. The cubic root of 16872442 is about 256.4834309956.

The spelling of 16872442 in words is "sixteen million, eight hundred seventy-two thousand, four hundred forty-two".