16326340 has 12 divisors (see below), whose sum is σ = 34285356. Its totient is φ = 6530528.

The previous prime is 16326337. The next prime is 16326371. The reversal of 16326340 is 4362361.

It can be written as a sum of positive squares in 2 ways, for example, as 9229444 + 7096896 = 3038^2 + 2664^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 408139 + ... + 408178.

It is an arithmetic number, because the mean of its divisors is an integer number (2857113).

Almost surely, 2^16326340 is an apocalyptic number.

16326340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16326340 is an abundant number, since it is smaller than the sum of its proper divisors (17959016).

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

16326340 is a wasteful number, since it uses less digits than its factorization.

16326340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816326 (or 816324 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 16326340 is about 4040.5865910781. The cubic root of 16326340 is about 253.6858703722.

The spelling of 16326340 in words is "sixteen million, three hundred twenty-six thousand, three hundred forty".