26449878 has 64 divisors (see below), whose sum is σ = 65705472. Its totient is φ = 6912000.

The previous prime is 26449867. The next prime is 26449883. The reversal of 26449878 is 87894462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105253 + ... + 105503.

It is an arithmetic number, because the mean of its divisors is an integer number (1026648).

Almost surely, 2^26449878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26449878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32852736).

26449878 is an abundant number, since it is smaller than the sum of its proper divisors (39255594).

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

26449878 is a wasteful number, since it uses less digits than its factorization.

26449878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469.

The product of its digits is 774144, while the sum is 48.

The square root of 26449878 is about 5142.9444873535. The cubic root of 26449878 is about 297.9485144451.

The spelling of 26449878 in words is "twenty-six million, four hundred forty-nine thousand, eight hundred seventy-eight".