16980842 has 4 divisors (see below), whose sum is σ = 25471266. Its totient is φ = 8490420.

The previous prime is 16980833. The next prime is 16980853. The reversal of 16980842 is 24808961.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12524521 + 4456321 = 3539^2 + 2111^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16980796 and 16980805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4245209 + ... + 4245212.

Almost surely, 2^16980842 is an apocalyptic number.

16980842 is a deficient number, since it is larger than the sum of its proper divisors (8490424).

16980842 is an equidigital number, since it uses as much as digits as its factorization.

16980842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8490423.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 16980842 is about 4120.7817219552. The cubic root of 16980842 is about 257.0315333229.

The spelling of 16980842 in words is "sixteen million, nine hundred eighty thousand, eight hundred forty-two".