26498220 has 72 divisors (see below), whose sum is σ = 86318064. Its totient is φ = 6056064.

The previous prime is 26498209. The next prime is 26498221. The reversal of 26498220 is 2289462.

It is not an unprimeable number, because it can be changed into a prime (26498221) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1567 + ... + 7446.

It is an arithmetic number, because the mean of its divisors is an integer number (1198862).

Almost surely, 2^26498220 is an apocalyptic number.

26498220 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 26498220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43159032).

26498220 is an abundant number, since it is smaller than the sum of its proper divisors (59819844).

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

26498220 is a wasteful number, since it uses less digits than its factorization.

26498220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9039 (or 9030 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 26498220 is about 5147.6421787067. The cubic root of 26498220 is about 298.1299224780.

The spelling of 26498220 in words is "twenty-six million, four hundred ninety-eight thousand, two hundred twenty".