26133220 has 12 divisors (see below), whose sum is σ = 54879804. Its totient is φ = 10453280.

The previous prime is 26133209. The next prime is 26133223. The reversal of 26133220 is 2233162.

It can be written as a sum of positive squares in 2 ways, for example, as 9535744 + 16597476 = 3088^2 + 4074^2 .

It is not an unprimeable number, because it can be changed into a prime (26133223) 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, 653311 + ... + 653350.

It is an arithmetic number, because the mean of its divisors is an integer number (4573317).

Almost surely, 2^26133220 is an apocalyptic number.

26133220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26133220 is an abundant number, since it is smaller than the sum of its proper divisors (28746584).

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

26133220 is a wasteful number, since it uses less digits than its factorization.

26133220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306670 (or 1306668 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 26133220 is about 5112.0661185082. The cubic root of 26133220 is about 296.7547242421.

Adding to 26133220 its reverse (2233162), we get a palindrome (28366382).

The spelling of 26133220 in words is "twenty-six million, one hundred thirty-three thousand, two hundred twenty".