16308380 has 72 divisors (see below), whose sum is σ = 39414816. Its totient is φ = 5653120.

The previous prime is 16308377. The next prime is 16308407. The reversal of 16308380 is 8380361.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 55514 + ... + 55806.

It is an arithmetic number, because the mean of its divisors is an integer number (547428).

Almost surely, 2^16308380 is an apocalyptic number.

16308380 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 16308380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19707408).

16308380 is an abundant number, since it is smaller than the sum of its proper divisors (23106436).

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

16308380 is a wasteful number, since it uses less digits than its factorization.

16308380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 16308380 is about 4038.3635299463. The cubic root of 16308380 is about 253.5928127742.

The spelling of 16308380 in words is "sixteen million, three hundred eight thousand, three hundred eighty".