16306340 has 12 divisors (see below), whose sum is σ = 34243356. Its totient is φ = 6522528.

The previous prime is 16306309. The next prime is 16306343. The reversal of 16306340 is 4360361.

It can be written as a sum of positive squares in 2 ways, for example, as 4293184 + 12013156 = 2072^2 + 3466^2 .

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (16306343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407639 + ... + 407678.

It is an arithmetic number, because the mean of its divisors is an integer number (2853613).

Almost surely, 2^16306340 is an apocalyptic number.

16306340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16306340 is an abundant number, since it is smaller than the sum of its proper divisors (17937016).

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

16306340 is a wasteful number, since it uses less digits than its factorization.

16306340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815326 (or 815324 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 16306340 is about 4038.1109444888. The cubic root of 16306340 is about 253.5822384373.

The spelling of 16306340 in words is "sixteen million, three hundred six thousand, three hundred forty".