20223237 has 8 divisors (see below), whose sum is σ = 27894240. Its totient is φ = 13017200.

The previous prime is 20223221. The next prime is 20223257. The reversal of 20223237 is 73232202.

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

It is a cyclic number.

It is not a de Polignac number, because 20223237 - 2⁴ = 20223221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223257) 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, 116139 + ... + 116312.

It is an arithmetic number, because the mean of its divisors is an integer number (3486780).

Almost surely, 2^20223237 is an apocalyptic number.

It is an amenable number.

20223237 is a deficient number, since it is larger than the sum of its proper divisors (7671003).

20223237 is a wasteful number, since it uses less digits than its factorization.

20223237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232483.

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 20223237 is about 4497.0253501620. The cubic root of 20223237 is about 272.4479579656.

Adding to 20223237 its reverse (73232202), we get a palindrome (93455439).

The spelling of 20223237 in words is "twenty million, two hundred twenty-three thousand, two hundred thirty-seven".