26730320 has 40 divisors (see below), whose sum is σ = 63088224. Its totient is φ = 10530432.

The previous prime is 26730287. The next prime is 26730329. The reversal of 26730320 is 2303762.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26730329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2867 + ... + 7853.

Almost surely, 2^26730320 is an apocalyptic number.

26730320 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 26730320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31544112).

26730320 is an abundant number, since it is smaller than the sum of its proper divisors (36357904).

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

26730320 is a wasteful number, since it uses less digits than its factorization.

26730320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5067 (or 5061 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 26730320 is about 5170.1373289304. The cubic root of 26730320 is about 298.9978411719.

The spelling of 26730320 in words is "twenty-six million, seven hundred thirty thousand, three hundred twenty".