16042320 has 160 divisors (see below), whose sum is σ = 63210240. Its totient is φ = 3663360.

The previous prime is 16042319. The next prime is 16042337. The reversal of 16042320 is 2324061.

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 = 16042293 and 16042302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14590 + ... + 15650.

It is an arithmetic number, because the mean of its divisors is an integer number (395064).

Almost surely, 2^16042320 is an apocalyptic number.

16042320 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 16042320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31605120).

16042320 is an abundant number, since it is smaller than the sum of its proper divisors (47167920).

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

16042320 is a wasteful number, since it uses less digits than its factorization.

16042320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090 (or 1078 counting only the distinct ones).

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

The square root of 16042320 is about 4005.2865066060. The cubic root of 16042320 is about 252.2061804683.

Adding to 16042320 its reverse (2324061), we get a palindrome (18366381).

The spelling of 16042320 in words is "sixteen million, forty-two thousand, three hundred twenty".