16180226 has 8 divisors (see below), whose sum is σ = 25698060. Its totient is φ = 7614208.

The previous prime is 16180217. The next prime is 16180237. The reversal of 16180226 is 62208161.

It can be written as a sum of positive squares in 2 ways, for example, as 16008001 + 172225 = 4001^2 + 415^2 .

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

It is a super-2 number, since 2×16180226² = 523599426822152, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16180195 and 16180204.

It is an unprimeable number.

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, 237911 + ... + 237978.

Almost surely, 2^16180226 is an apocalyptic number.

16180226 is a deficient number, since it is larger than the sum of its proper divisors (9517834).

16180226 is a wasteful number, since it uses less digits than its factorization.

16180226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475908.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 16180226 is about 4022.4651645477. The cubic root of 16180226 is about 252.9268068253.

Adding to 16180226 its reverse (62208161), we get a palindrome (78388387).

The spelling of 16180226 in words is "sixteen million, one hundred eighty thousand, two hundred twenty-six".