26869320 has 80 divisors (see below), whose sum is σ = 90321660. Its totient is φ = 7164288.

The previous prime is 26869303. The next prime is 26869321. The reversal of 26869320 is 2396862.

It can be written as a sum of positive squares in 2 ways, for example, as 25583364 + 1285956 = 5058^2 + 1134^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (26869321) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 907 + ... + 7386.

Almost surely, 2^26869320 is an apocalyptic number.

26869320 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 26869320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45160830).

26869320 is an abundant number, since it is smaller than the sum of its proper divisors (63452340).

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

26869320 is a wasteful number, since it uses less digits than its factorization.

26869320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8316 (or 8303 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 26869320 is about 5183.5624815372. The cubic root of 26869320 is about 299.5152170402.

The spelling of 26869320 in words is "twenty-six million, eight hundred sixty-nine thousand, three hundred twenty".