16786240 has 28 divisors (see below), whose sum is σ = 39972996. Its totient is φ = 6714368.

The previous prime is 16786223. The next prime is 16786241. The reversal of 16786240 is 4268761.

It can be written as a sum of positive squares in 2 ways, for example, as 13191424 + 3594816 = 3632^2 + 1896^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16786196 and 16786205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16786241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25909 + ... + 26548.

It is an arithmetic number, because the mean of its divisors is an integer number (1427607).

Almost surely, 2^16786240 is an apocalyptic number.

16786240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16786240 is an abundant number, since it is smaller than the sum of its proper divisors (23186756).

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

16786240 is an equidigital number, since it uses as much as digits as its factorization.

16786240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52474 (or 52464 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 16786240 is about 4097.1014144148. The cubic root of 16786240 is about 256.0458902108.

The spelling of 16786240 in words is "sixteen million, seven hundred eighty-six thousand, two hundred forty".