16307228 has 24 divisors (see below), whose sum is σ = 32925312. Its totient is φ = 6922224.

The previous prime is 16307227. The next prime is 16307237. The reversal of 16307228 is 82270361.

It is a happy number.

16307228 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

16307228 is strictly pandigital in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 16307228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16307227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275 + ... + 5717.

It is an arithmetic number, because the mean of its divisors is an integer number (1371888).

Almost surely, 2^16307228 is an apocalyptic number.

It is an amenable number.

16307228 is an abundant number, since it is smaller than the sum of its proper divisors (16618084).

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

16307228 is a wasteful number, since it uses less digits than its factorization.

16307228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5561 (or 5559 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 16307228 is about 4038.2208953944. The cubic root of 16307228 is about 253.5868414924.

Adding to 16307228 its reverse (82270361), we get a palindrome (98577589).

The spelling of 16307228 in words is "sixteen million, three hundred seven thousand, two hundred twenty-eight".