26519872 has 28 divisors (see below), whose sum is σ = 53495956. Its totient is φ = 13040640.

The previous prime is 26519869. The next prime is 26519879. The reversal of 26519872 is 27891562.

It can be written as a sum of positive squares in 2 ways, for example, as 1679616 + 24840256 = 1296^2 + 4984^2 .

It is a super-2 number, since 2×26519872² = 1406607221792768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26519879) 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, 508 + ... + 7300.

Almost surely, 2^26519872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26519872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26747978).

26519872 is an abundant number, since it is smaller than the sum of its proper divisors (26976084).

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

26519872 is an equidigital number, since it uses as much as digits as its factorization.

26519872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6866 (or 6856 counting only the distinct ones).

The product of its digits is 60480, while the sum is 40.

The square root of 26519872 is about 5149.7448480483. The cubic root of 26519872 is about 298.2111021661.

The spelling of 26519872 in words is "twenty-six million, five hundred nineteen thousand, eight hundred seventy-two".