16329380 has 12 divisors (see below), whose sum is σ = 34291740. Its totient is φ = 6531744.

The previous prime is 16329359. The next prime is 16329389. The reversal of 16329380 is 8392361.

16329380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2010724 + 14318656 = 1418^2 + 3784^2 .

It is not an unprimeable number, because it can be changed into a prime (16329389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408215 + ... + 408254.

It is an arithmetic number, because the mean of its divisors is an integer number (2857645).

Almost surely, 2^16329380 is an apocalyptic number.

16329380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16329380 is an abundant number, since it is smaller than the sum of its proper divisors (17962360).

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

16329380 is a wasteful number, since it uses less digits than its factorization.

16329380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816478 (or 816476 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 16329380 is about 4040.9627565718. The cubic root of 16329380 is about 253.7016150152.

The spelling of 16329380 in words is "sixteen million, three hundred twenty-nine thousand, three hundred eighty".