26534720 has 56 divisors (see below), whose sum is σ = 63889128. Its totient is φ = 10496000.

The previous prime is 26534713. The next prime is 26534723. The reversal of 26534720 is 2743562.

It can be written as a sum of positive squares in 4 ways, for example, as 6031936 + 20502784 = 2456^2 + 4528^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26534723) 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, 31910 + ... + 32730.

Almost surely, 2^26534720 is an apocalyptic number.

26534720 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 26534720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31944564).

26534720 is an abundant number, since it is smaller than the sum of its proper divisors (37354408).

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

26534720 is a wasteful number, since it uses less digits than its factorization.

26534720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 26534720 is about 5151.1862711418. The cubic root of 26534720 is about 298.2667461293.

The spelling of 26534720 in words is "twenty-six million, five hundred thirty-four thousand, seven hundred twenty".