20444230 has 16 divisors (see below), whose sum is σ = 36891360. Its totient is φ = 8157312.

The previous prime is 20444227. The next prime is 20444233. The reversal of 20444230 is 3244402.

It is an interprime number because it is at equal distance from previous prime (20444227) and next prime (20444233).

It is a junction number, because it is equal to n+sod(n) for n = 20444198 and 20444207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20444233) 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, 2062 + ... + 6718.

It is an arithmetic number, because the mean of its divisors is an integer number (2305710).

Almost surely, 2^20444230 is an apocalyptic number.

20444230 is a deficient number, since it is larger than the sum of its proper divisors (16447130).

20444230 is a wasteful number, since it uses less digits than its factorization.

20444230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5103.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 20444230 is about 4521.5296084400. The cubic root of 20444230 is about 273.4367726021.

Adding to 20444230 its reverse (3244402), we get a palindrome (23688632).

The spelling of 20444230 in words is "twenty million, four hundred forty-four thousand, two hundred thirty".