16380320 has 96 divisors (see below), whose sum is σ = 43436736. Its totient is φ = 5785600.

The previous prime is 16380317. The next prime is 16380349. The reversal of 16380320 is 2308361.

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 15 ways as a sum of consecutive naturals, for example, 72047 + ... + 72273.

It is an arithmetic number, because the mean of its divisors is an integer number (452466).

Almost surely, 2^16380320 is an apocalyptic number.

16380320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16380320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21718368).

16380320 is an abundant number, since it is smaller than the sum of its proper divisors (27056416).

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

16380320 is a wasteful number, since it uses less digits than its factorization.

16380320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 16380320 is about 4047.2608020734. The cubic root of 16380320 is about 253.9651511493.

Adding to 16380320 its reverse (2308361), we get a palindrome (18688681).

The spelling of 16380320 in words is "sixteen million, three hundred eighty thousand, three hundred twenty".