16786842 has 16 divisors (see below), whose sum is σ = 35340960. Its totient is φ = 5301072.

The previous prime is 16786831. The next prime is 16786843. The reversal of 16786842 is 24868761.

It is a junction number, because it is equal to n+sod(n) for n = 16786794 and 16786803.

It is not an unprimeable number, because it can be changed into a prime (16786843) 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, 73513 + ... + 73740.

It is an arithmetic number, because the mean of its divisors is an integer number (2208810).

Almost surely, 2^16786842 is an apocalyptic number.

16786842 is an abundant number, since it is smaller than the sum of its proper divisors (18554118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16786842 is a wasteful number, since it uses less digits than its factorization.

16786842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147277.

The product of its digits is 129024, while the sum is 42.

The square root of 16786842 is about 4097.1748803291. The cubic root of 16786842 is about 256.0489510071.

It can be divided in two parts, 167868 and 42, that added together give a triangular number (167910 = T₅₇₉).

The spelling of 16786842 in words is "sixteen million, seven hundred eighty-six thousand, eight hundred forty-two".