26436220 has 48 divisors (see below), whose sum is σ = 59300640. Its totient is φ = 9870336.

The previous prime is 26436217. The next prime is 26436229. The reversal of 26436220 is 2263462.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26436229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27264 + ... + 28216.

It is an arithmetic number, because the mean of its divisors is an integer number (1235430).

Almost surely, 2^26436220 is an apocalyptic number.

26436220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26436220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29650320).

26436220 is an abundant number, since it is smaller than the sum of its proper divisors (32864420).

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

26436220 is a wasteful number, since it uses less digits than its factorization.

26436220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 26436220 is about 5141.6164773347. The cubic root of 26436220 is about 297.8972214366.

Adding to 26436220 its reverse (2263462), we get a palindrome (28699682).

The spelling of 26436220 in words is "twenty-six million, four hundred thirty-six thousand, two hundred twenty".