16530226 has 8 divisors (see below), whose sum is σ = 24834204. Its totient is φ = 8252160.

The previous prime is 16530221. The next prime is 16530251. The reversal of 16530226 is 62203561.

It can be written as a sum of positive squares in 2 ways, for example, as 16281225 + 249001 = 4035^2 + 499^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×16530226² = 546496743222152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16530226.

It is not an unprimeable number, because it can be changed into a prime (16530221) 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, 4795 + ... + 7486.

Almost surely, 2^16530226 is an apocalyptic number.

16530226 is a deficient number, since it is larger than the sum of its proper divisors (8303978).

16530226 is a wasteful number, since it uses less digits than its factorization.

16530226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12956.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 16530226 is about 4065.7380633779. The cubic root of 16530226 is about 254.7375282129.

Adding to 16530226 its reverse (62203561), we get a palindrome (78733787).

The spelling of 16530226 in words is "sixteen million, five hundred thirty thousand, two hundred twenty-six".