16305380 has 144 divisors (see below), whose sum is σ = 46212096. Its totient is φ = 4700160.

The previous prime is 16305371. The next prime is 16305383. The reversal of 16305380 is 8350361.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (16305383) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 525965 + ... + 525995.

Almost surely, 2^16305380 is an apocalyptic number.

16305380 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 16305380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23106048).

16305380 is an abundant number, since it is smaller than the sum of its proper divisors (29906716).

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

16305380 is a wasteful number, since it uses less digits than its factorization.

16305380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 16305380 is about 4037.9920752770. The cubic root of 16305380 is about 253.5772619737.

The spelling of 16305380 in words is "sixteen million, three hundred five thousand, three hundred eighty".