26506720 has 24 divisors (see below), whose sum is σ = 62622504. Its totient is φ = 10602624.

The previous prime is 26506703. The next prime is 26506721. The reversal of 26506720 is 2760562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26506721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82674 + ... + 82993.

It is an arithmetic number, because the mean of its divisors is an integer number (2609271).

Almost surely, 2^26506720 is an apocalyptic number.

26506720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26506720 is an abundant number, since it is smaller than the sum of its proper divisors (36115784).

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

26506720 is a wasteful number, since it uses less digits than its factorization.

26506720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165682 (or 165674 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 26506720 is about 5148.4677332193. The cubic root of 26506720 is about 298.1617967376.

The spelling of 26506720 in words is "twenty-six million, five hundred six thousand, seven hundred twenty".