16328380 has 24 divisors (see below), whose sum is σ = 34488720. Its totient is φ = 6493440.

The previous prime is 16328371. The next prime is 16328383. The reversal of 16328380 is 8382361.

It is a super-3 number, since 3×16328380³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16328383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1300 + ... + 5860.

It is an arithmetic number, because the mean of its divisors is an integer number (1437030).

Almost surely, 2^16328380 is an apocalyptic number.

16328380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16328380 is an abundant number, since it is smaller than the sum of its proper divisors (18160340).

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

16328380 is a wasteful number, since it uses less digits than its factorization.

16328380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4749 (or 4747 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 16328380 is about 4040.8390217874. The cubic root of 16328380 is about 253.6964360720.

The spelling of 16328380 in words is "sixteen million, three hundred twenty-eight thousand, three hundred eighty".