20226356 has 24 divisors (see below), whose sum is σ = 36374016. Its totient is φ = 9836640.

The previous prime is 20226347. The next prime is 20226359. The reversal of 20226356 is 65362202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20226359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50750 + ... + 51146.

It is an arithmetic number, because the mean of its divisors is an integer number (1515584).

Almost surely, 2^20226356 is an apocalyptic number.

It is an amenable number.

20226356 is a deficient number, since it is larger than the sum of its proper divisors (16147660).

20226356 is a wasteful number, since it uses less digits than its factorization.

20226356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719 (or 717 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 20226356 is about 4497.3721215839. The cubic root of 20226356 is about 272.4619636611.

Adding to 20226356 its reverse (65362202), we get a palindrome (85588558).

The spelling of 20226356 in words is "twenty million, two hundred twenty-six thousand, three hundred fifty-six".