16243226 has 4 divisors (see below), whose sum is σ = 24364842. Its totient is φ = 8121612.

The previous prime is 16243223. The next prime is 16243229. The reversal of 16243226 is 62234261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62234261 = 29 ⋅2146009.

It is an interprime number because it is at equal distance from previous prime (16243223) and next prime (16243229).

It can be written as a sum of positive squares in only one way, i.e., 16008001 + 235225 = 4001^2 + 485^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16243195 and 16243204.

It is not an unprimeable number, because it can be changed into a prime (16243223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4060805 + ... + 4060808.

Almost surely, 2^16243226 is an apocalyptic number.

16243226 is a deficient number, since it is larger than the sum of its proper divisors (8121616).

16243226 is an equidigital number, since it uses as much as digits as its factorization.

16243226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8121615.

The product of its digits is 3456, while the sum is 26.

The square root of 16243226 is about 4030.2885752760. The cubic root of 16243226 is about 253.2546504644.

Adding to 16243226 its reverse (62234261), we get a palindrome (78477487).

The spelling of 16243226 in words is "sixteen million, two hundred forty-three thousand, two hundred twenty-six".