26211220 has 24 divisors (see below), whose sum is σ = 62907264. Its totient is φ = 8986656.

The previous prime is 26211181. The next prime is 26211221. The reversal of 26211220 is 2211262.

It is a junction number, because it is equal to n+sod(n) for n = 26211194 and 26211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26211221) 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, 93472 + ... + 93751.

It is an arithmetic number, because the mean of its divisors is an integer number (2621136).

Almost surely, 2^26211220 is an apocalyptic number.

26211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26211220 is an abundant number, since it is smaller than the sum of its proper divisors (36696044).

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

26211220 is a wasteful number, since it uses less digits than its factorization.

26211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187239 (or 187237 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 26211220 is about 5119.6894437065. The cubic root of 26211220 is about 297.0496729412.

Adding to 26211220 its reverse (2211262), we get a palindrome (28422482).

The spelling of 26211220 in words is "twenty-six million, two hundred eleven thousand, two hundred twenty".