16330520 has 16 divisors (see below), whose sum is σ = 36743760. Its totient is φ = 6532192.

The previous prime is 16330487. The next prime is 16330541. The reversal of 16330520 is 2503361.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 16330492 and 16330501.

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 3 ways as a sum of consecutive naturals, for example, 204092 + ... + 204171.

It is an arithmetic number, because the mean of its divisors is an integer number (2296485).

Almost surely, 2^16330520 is an apocalyptic number.

16330520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16330520 is an abundant number, since it is smaller than the sum of its proper divisors (20413240).

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

16330520 is a wasteful number, since it uses less digits than its factorization.

16330520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408274 (or 408270 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 16330520 is about 4041.1038096045. The cubic root of 16330520 is about 253.7075187525.

Adding to 16330520 its reverse (2503361), we get a palindrome (18833881).

The spelling of 16330520 in words is "sixteen million, three hundred thirty thousand, five hundred twenty".