26289872 has 30 divisors (see below), whose sum is σ = 59254578. Its totient is φ = 11266752.

The previous prime is 26289811. The next prime is 26289877. The reversal of 26289872 is 27898262.

It can be written as a sum of positive squares in only one way, i.e., 24840256 + 1449616 = 4984^2 + 1204^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26289877) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15983 + ... + 17550.

Almost surely, 2^26289872 is an apocalyptic number.

It is an amenable number.

26289872 is an abundant number, since it is smaller than the sum of its proper divisors (32964706).

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

26289872 is a wasteful number, since it uses less digits than its factorization.

26289872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33555 (or 33542 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 26289872 is about 5127.3650152881. The cubic root of 26289872 is about 297.3464952023.

The spelling of 26289872 in words is "twenty-six million, two hundred eighty-nine thousand, eight hundred seventy-two".