16023420 has 168 divisors, whose sum is σ = 58025184. Its totient is φ = 3639168.

The previous prime is 16023407. The next prime is 16023431. The reversal of 16023420 is 2432061.

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 = 16023393 and 16023402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 101982 + ... + 102138.

It is an arithmetic number, because the mean of its divisors is an integer number (345388).

Almost surely, 2^16023420 is an apocalyptic number.

16023420 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 16023420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29012592).

16023420 is an abundant number, since it is smaller than the sum of its proper divisors (42001764).

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

16023420 is a wasteful number, since it uses less digits than its factorization.

16023420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 174 counting only the distinct ones).

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

The square root of 16023420 is about 4002.9264295013. The cubic root of 16023420 is about 252.1070973355.

Adding to 16023420 its reverse (2432061), we get a palindrome (18455481).

The spelling of 16023420 in words is "sixteen million, twenty-three thousand, four hundred twenty".