26530220 has 12 divisors (see below), whose sum is σ = 55713504. Its totient is φ = 10612080.

The previous prime is 26530219. The next prime is 26530223. The reversal of 26530220 is 2203562.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1326511 = 26530220 / (2 + 6 + 5 + 3 + 0 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 26530192 and 26530201.

It is not an unprimeable number, because it can be changed into a prime (26530223) 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, 663236 + ... + 663275.

It is an arithmetic number, because the mean of its divisors is an integer number (4642792).

Almost surely, 2^26530220 is an apocalyptic number.

26530220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26530220 is an abundant number, since it is smaller than the sum of its proper divisors (29183284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26530220 is a wasteful number, since it uses less digits than its factorization.

26530220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326520 (or 1326518 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 26530220 is about 5150.7494600301. The cubic root of 26530220 is about 298.2498842437.

Adding to 26530220 its reverse (2203562), we get a palindrome (28733782).

The spelling of 26530220 in words is "twenty-six million, five hundred thirty thousand, two hundred twenty".