16102820 has 24 divisors (see below), whose sum is σ = 33952128. Its totient is φ = 6415200.

The previous prime is 16102817. The next prime is 16102883. The reversal of 16102820 is 2820161.

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 = 16102792 and 16102801.

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, 3935 + ... + 6905.

It is an arithmetic number, because the mean of its divisors is an integer number (1414672).

Almost surely, 2^16102820 is an apocalyptic number.

16102820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16102820 is an abundant number, since it is smaller than the sum of its proper divisors (17849308).

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

16102820 is a wasteful number, since it uses less digits than its factorization.

16102820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251 (or 3249 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 16102820 is about 4012.8319177359. The cubic root of 16102820 is about 252.5228290309.

Adding to 16102820 its reverse (2820161), we get a palindrome (18922981).

The spelling of 16102820 in words is "sixteen million, one hundred two thousand, eight hundred twenty".