16130320 has 20 divisors (see below), whose sum is σ = 37503180. Its totient is φ = 6452096.

The previous prime is 16130311. The next prime is 16130327. The reversal of 16130320 is 2303161.

It can be written as a sum of positive squares in 2 ways, for example, as 3936256 + 12194064 = 1984^2 + 3492^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 16130294 and 16130303.

It is not an unprimeable number, because it can be changed into a prime (16130327) 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, 100735 + ... + 100894.

It is an arithmetic number, because the mean of its divisors is an integer number (1875159).

Almost surely, 2^16130320 is an apocalyptic number.

16130320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16130320 is an abundant number, since it is smaller than the sum of its proper divisors (21372860).

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

16130320 is a wasteful number, since it uses less digits than its factorization.

16130320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201642 (or 201636 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 16130320 is about 4016.2569638906. The cubic root of 16130320 is about 252.6664980363. Note that the first 3 decimals are identical.

Adding to 16130320 its reverse (2303161), we get a palindrome (18433481).

The spelling of 16130320 in words is "sixteen million, one hundred thirty thousand, three hundred twenty".