16396776 has 128 divisors (see below), whose sum is σ = 50918400. Its totient is φ = 4847040.

The previous prime is 16396771. The next prime is 16396801. The reversal of 16396776 is 67769361.

16396776 is a `hidden beast` number, since 1 + 639 + 6 + 7 + 7 + 6 = 666.

Its product of digits (285768) is a multiple of the sum of its prime factors (196).

It is not an unprimeable number, because it can be changed into a prime (16396771) 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 31 ways as a sum of consecutive naturals, for example, 159141 + ... + 159243.

It is an arithmetic number, because the mean of its divisors is an integer number (397800).

Almost surely, 2^16396776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16396776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25459200).

16396776 is an abundant number, since it is smaller than the sum of its proper divisors (34521624).

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

16396776 is a wasteful number, since it uses less digits than its factorization.

16396776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 186 counting only the distinct ones).

The product of its digits is 285768, while the sum is 45.

The square root of 16396776 is about 4049.2932716710. The cubic root of 16396776 is about 254.0501688573.

The spelling of 16396776 in words is "sixteen million, three hundred ninety-six thousand, seven hundred seventy-six".