16324020 has 72 divisors (see below), whose sum is σ = 51682176. Its totient is φ = 4162752.

The previous prime is 16324019. The next prime is 16324031. The reversal of 16324020 is 2042361.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 16323984 and 16324002.

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, 2169 + ... + 6111.

It is an arithmetic number, because the mean of its divisors is an integer number (717808).

Almost surely, 2^16324020 is an apocalyptic number.

16324020 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 16324020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25841088).

16324020 is an abundant number, since it is smaller than the sum of its proper divisors (35358156).

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

16324020 is a wasteful number, since it uses less digits than its factorization.

16324020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3981 (or 3976 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 16324020 is about 4040.2994938494. The cubic root of 16324020 is about 253.6738534086.

Adding to 16324020 its reverse (2042361), we get a palindrome (18366381).

The spelling of 16324020 in words is "sixteen million, three hundred twenty-four thousand, twenty".