26864320 has 112 divisors (see below), whose sum is σ = 74615040. Its totient is φ = 9022464.

The previous prime is 26864303. The next prime is 26864363. The reversal of 26864320 is 2346862.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149991 + ... + 150169.

Almost surely, 2^26864320 is an apocalyptic number.

26864320 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 26864320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37307520).

26864320 is an abundant number, since it is smaller than the sum of its proper divisors (47750720).

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

26864320 is a wasteful number, since it uses less digits than its factorization.

26864320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 26864320 is about 5183.0801653071. The cubic root of 26864320 is about 299.4966373741.

The spelling of 26864320 in words is "twenty-six million, eight hundred sixty-four thousand, three hundred twenty".