16228988 has 6 divisors (see below), whose sum is σ = 28400736. Its totient is φ = 8114492.

The previous prime is 16228987. The next prime is 16228991. The reversal of 16228988 is 88982261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16228981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2028620 + ... + 2028627.

It is an arithmetic number, because the mean of its divisors is an integer number (4733456).

Almost surely, 2^16228988 is an apocalyptic number.

It is an amenable number.

16228988 is a deficient number, since it is larger than the sum of its proper divisors (12171748).

16228988 is a wasteful number, since it uses less digits than its factorization.

16228988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4057251 (or 4057249 counting only the distinct ones).

The product of its digits is 110592, while the sum is 44.

The square root of 16228988 is about 4028.5218132710. The cubic root of 16228988 is about 253.1806320439.

The spelling of 16228988 in words is "sixteen million, two hundred twenty-eight thousand, nine hundred eighty-eight".