220530826 has 4 divisors (see below), whose sum is σ = 330796242. Its totient is φ = 110265412.

The previous prime is 220530823. The next prime is 220530829. The reversal of 220530826 is 628035022.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (220530823) and next prime (220530829).

It can be written as a sum of positive squares in only one way, i.e., 220492801 + 38025 = 14849^2 + 195^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220530794 and 220530803.

It is not an unprimeable number, because it can be changed into a prime (220530823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55132705 + ... + 55132708.

Almost surely, 2^220530826 is an apocalyptic number.

220530826 is a deficient number, since it is larger than the sum of its proper divisors (110265416).

220530826 is a wasteful number, since it uses less digits than its factorization.

220530826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110265415.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 220530826 is about 14850.2803340543. The cubic root of 220530826 is about 604.1662134112.

Adding to 220530826 its reverse (628035022), we get a palindrome (848565848).

The spelling of 220530826 in words is "two hundred twenty million, five hundred thirty thousand, eight hundred twenty-six".