16028840 has 16 divisors (see below), whose sum is σ = 36064980. Its totient is φ = 6411520.

The previous prime is 16028839. The next prime is 16028849. The reversal of 16028840 is 4882061.

It can be written as a sum of positive squares in 2 ways, for example, as 14760964 + 1267876 = 3842^2 + 1126^2 .

It is not an unprimeable number, because it can be changed into a prime (16028849) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 200321 + ... + 200400.

Almost surely, 2^16028840 is an apocalyptic number.

16028840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16028840 is an abundant number, since it is smaller than the sum of its proper divisors (20036140).

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

16028840 is a wasteful number, since it uses less digits than its factorization.

16028840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400732 (or 400728 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 16028840 is about 4003.6033769593. The cubic root of 16028840 is about 252.1355196163.

The spelling of 16028840 in words is "sixteen million, twenty-eight thousand, eight hundred forty".