16408986 has 16 divisors (see below), whose sum is σ = 35801568. Its totient is φ = 4972400.

The previous prime is 16408981. The next prime is 16408993. The reversal of 16408986 is 68980461.

It is not an unprimeable number, because it can be changed into a prime (16408981) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 124245 + ... + 124376.

It is an arithmetic number, because the mean of its divisors is an integer number (2237598).

Almost surely, 2^16408986 is an apocalyptic number.

16408986 is an abundant number, since it is smaller than the sum of its proper divisors (19392582).

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

16408986 is a wasteful number, since it uses less digits than its factorization.

16408986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248637.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 16408986 is about 4050.8006615977. The cubic root of 16408986 is about 254.1132134240.

The spelling of 16408986 in words is "sixteen million, four hundred eight thousand, nine hundred eighty-six".