26726720 has 70 divisors (see below), whose sum is σ = 67620642. Its totient is φ = 10061824.

The previous prime is 26726699. The next prime is 26726761. The reversal of 26726720 is 2762762.

It can be written as a sum of positive squares in 5 ways, for example, as 430336 + 26296384 = 656^2 + 5128^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1572152 + ... + 1572168.

Almost surely, 2^26726720 is an apocalyptic number.

26726720 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 26726720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33810321).

26726720 is an abundant number, since it is smaller than the sum of its proper divisors (40893922).

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

26726720 is an frugal number, since it uses more digits than its factorization.

26726720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 24 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 26726720 is about 5169.7891639795. The cubic root of 26726720 is about 298.9844177068.

The spelling of 26726720 in words is "twenty-six million, seven hundred twenty-six thousand, seven hundred twenty".