16087228 has 12 divisors (see below), whose sum is σ = 29123640. Its totient is φ = 7766192.

The previous prime is 16087223. The next prime is 16087231. The reversal of 16087228 is 82278061.

It is a junction number, because it is equal to n+sod(n) for n = 16087193 and 16087202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16087223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69226 + ... + 69457.

It is an arithmetic number, because the mean of its divisors is an integer number (2426970).

Almost surely, 2^16087228 is an apocalyptic number.

It is an amenable number.

16087228 is a deficient number, since it is larger than the sum of its proper divisors (13036412).

16087228 is a wasteful number, since it uses less digits than its factorization.

16087228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138716 (or 138714 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 16087228 is about 4010.8886795821. Note that the first 3 decimals coincide. The cubic root of 16087228 is about 252.4412986438.

It can be divided in two parts, 1608 and 7228, that added together give a square (8836 = 94²).

The spelling of 16087228 in words is "sixteen million, eighty-seven thousand, two hundred twenty-eight".