16780256 has 24 divisors (see below), whose sum is σ = 33304320. Its totient is φ = 8322048.

The previous prime is 16780237. The next prime is 16780259. The reversal of 16780256 is 65208761.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16780259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2000 + ... + 6128.

It is an arithmetic number, because the mean of its divisors is an integer number (1387680).

Almost surely, 2^16780256 is an apocalyptic number.

16780256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16780256 is a deficient number, since it is larger than the sum of its proper divisors (16524064).

16780256 is a wasteful number, since it uses less digits than its factorization.

16780256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4266 (or 4258 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 16780256 is about 4096.3710769412. The cubic root of 16780256 is about 256.0154613058.

The spelling of 16780256 in words is "sixteen million, seven hundred eighty thousand, two hundred fifty-six".