26626220 has 48 divisors (see below), whose sum is σ = 60328800. Its totient is φ = 9838080.

The previous prime is 26626211. The next prime is 26626253. The reversal of 26626220 is 2262662.

It is a self number, because there is not a number n which added to its sum of digits gives 26626220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14726 + ... + 16434.

It is an arithmetic number, because the mean of its divisors is an integer number (1256850).

Almost surely, 2^26626220 is an apocalyptic number.

26626220 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 26626220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30164400).

26626220 is an abundant number, since it is smaller than the sum of its proper divisors (33702580).

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

26626220 is a wasteful number, since it uses less digits than its factorization.

26626220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778 (or 1776 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 26626220 is about 5160.0600771696. The cubic root of 26626220 is about 298.6091917686.

Adding to 26626220 its reverse (2262662), we get a palindrome (28888882).

The spelling of 26626220 in words is "twenty-six million, six hundred twenty-six thousand, two hundred twenty".