20016226 has 4 divisors (see below), whose sum is σ = 30024342. Its totient is φ = 10008112.

The previous prime is 20016221. The next prime is 20016229. The reversal of 20016226 is 62261002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12967201 + 7049025 = 3601^2 + 2655^2 .

It is not an unprimeable number, because it can be changed into a prime (20016221) by changing a digit.

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 as a sum of consecutive naturals, namely, 5004055 + ... + 5004058.

Almost surely, 2^20016226 is an apocalyptic number.

20016226 is a deficient number, since it is larger than the sum of its proper divisors (10008116).

20016226 is a wasteful number, since it uses less digits than its factorization.

20016226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10008115.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 20016226 is about 4473.9497091496. The cubic root of 20016226 is about 271.5151487172.

Adding to 20016226 its reverse (62261002), we get a palindrome (82277228).

The spelling of 20016226 in words is "twenty million, sixteen thousand, two hundred twenty-six".