16030820 has 24 divisors (see below), whose sum is σ = 36254904. Its totient is φ = 5918976.

The previous prime is 16030811. The next prime is 16030837. The reversal of 16030820 is 2803061.

16030820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 238144 + 15792676 = 488^2 + 3974^2 .

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 = 16030792 and 16030801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30569 + ... + 31088.

It is an arithmetic number, because the mean of its divisors is an integer number (1510621).

Almost surely, 2^16030820 is an apocalyptic number.

16030820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16030820 is an abundant number, since it is smaller than the sum of its proper divisors (20224084).

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

16030820 is a wasteful number, since it uses less digits than its factorization.

16030820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61679 (or 61677 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 16030820 is about 4003.8506465651. The cubic root of 16030820 is about 252.1459010657.

Adding to 16030820 its reverse (2803061), we get a palindrome (18833881).

The spelling of 16030820 in words is "sixteen million, thirty thousand, eight hundred twenty".