20262227 has 4 divisors (see below), whose sum is σ = 21328680. Its totient is φ = 19195776.

The previous prime is 20262223. The next prime is 20262239. The reversal of 20262227 is 72226202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72226202 = 2 ⋅36113101.

It is not a de Polignac number, because 20262227 - 2² = 20262223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20262223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533198 + ... + 533235.

It is an arithmetic number, because the mean of its divisors is an integer number (5332170).

Almost surely, 2^20262227 is an apocalyptic number.

20262227 is a deficient number, since it is larger than the sum of its proper divisors (1066453).

20262227 is a wasteful number, since it uses less digits than its factorization.

20262227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066452.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 20262227 is about 4501.3583505426. The cubic root of 20262227 is about 272.6229369822.

Adding to 20262227 its reverse (72226202), we get a palindrome (92488429).

The spelling of 20262227 in words is "twenty million, two hundred sixty-two thousand, two hundred twenty-seven".