20226190 has 8 divisors (see below), whose sum is σ = 36407160. Its totient is φ = 8090472.

The previous prime is 20226179. The next prime is 20226191. The reversal of 20226190 is 9162202.

It is a happy number.

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

It is a super-2 number, since 2×20226190² = 818197523832200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20226191) 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, 1011300 + ... + 1011319.

It is an arithmetic number, because the mean of its divisors is an integer number (4550895).

Almost surely, 2^20226190 is an apocalyptic number.

20226190 is a deficient number, since it is larger than the sum of its proper divisors (16180970).

20226190 is a wasteful number, since it uses less digits than its factorization.

20226190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022626.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 20226190 is about 4497.3536663242. The cubic root of 20226190 is about 272.4612182836.

Adding to 20226190 its reverse (9162202), we get a palindrome (29388392).

The spelling of 20226190 in words is "twenty million, two hundred twenty-six thousand, one hundred ninety".