26862720 has 128 divisors (see below), whose sum is σ = 90771840. Its totient is φ = 6733824.

The previous prime is 26862707. The next prime is 26862721. The reversal of 26862720 is 2726862.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26862721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32229 + ... + 33051.

It is an arithmetic number, because the mean of its divisors is an integer number (709155).

Almost surely, 2^26862720 is an apocalyptic number.

26862720 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 26862720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45385920).

26862720 is an abundant number, since it is smaller than the sum of its proper divisors (63909120).

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

26862720 is a wasteful number, since it uses less digits than its factorization.

26862720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862 (or 850 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 26862720 is about 5182.9258146340. The cubic root of 26862720 is about 299.4906913940.

The spelling of 26862720 in words is "twenty-six million, eight hundred sixty-two thousand, seven hundred twenty".