26489800 has 48 divisors (see below), whose sum is σ = 64839600. Its totient is φ = 10036800.

The previous prime is 26489797. The next prime is 26489807. The reversal of 26489800 is 898462.

It is a self number, because there is not a number n which added to its sum of digits gives 26489800.

It is not an unprimeable number, because it can be changed into a prime (26489807) 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 11 ways as a sum of consecutive naturals, for example, 315 + ... + 7285.

It is an arithmetic number, because the mean of its divisors is an integer number (1350825).

Almost surely, 2^26489800 is an apocalyptic number.

26489800 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 26489800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32419800).

26489800 is an abundant number, since it is smaller than the sum of its proper divisors (38349800).

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

26489800 is a wasteful number, since it uses less digits than its factorization.

26489800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7006 (or 6997 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 26489800 is about 5146.8242635629. The cubic root of 26489800 is about 298.0983414904.

The spelling of 26489800 in words is "twenty-six million, four hundred eighty-nine thousand, eight hundred".