26804988 has 72 divisors (see below), whose sum is σ = 82004832. Its totient is φ = 7206912.

The previous prime is 26804977. The next prime is 26804989. The reversal of 26804988 is 88940862.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26804989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1156 + ... + 7412.

It is an arithmetic number, because the mean of its divisors is an integer number (1138956).

Almost surely, 2^26804988 is an apocalyptic number.

26804988 is a gapful number since it is divisible by the number (28) 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 26804988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41002416).

26804988 is an abundant number, since it is smaller than the sum of its proper divisors (55199844).

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

26804988 is a wasteful number, since it uses less digits than its factorization.

26804988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6291 (or 6286 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 26804988 is about 5177.3533779336. The cubic root of 26804988 is about 299.2759874249.

The spelling of 26804988 in words is "twenty-six million, eight hundred four thousand, nine hundred eighty-eight".