16328340 has 72 divisors (see below), whose sum is σ = 56609280. Its totient is φ = 3731904.

The previous prime is 16328329. The next prime is 16328357. The reversal of 16328340 is 4382361.

It is a happy number.

16328340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16328340² = 533229374311200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5220 + ... + 7739.

It is an arithmetic number, because the mean of its divisors is an integer number (786240).

Almost surely, 2^16328340 is an apocalyptic number.

16328340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16328340 is an abundant number, since it is smaller than the sum of its proper divisors (40280940).

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

16328340 is a wasteful number, since it uses less digits than its factorization.

16328340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12981 (or 12976 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 16328340 is about 4040.8340723172. The cubic root of 16328340 is about 253.6962289099.

The spelling of 16328340 in words is "sixteen million, three hundred twenty-eight thousand, three hundred forty".